We stayed at the Sonesta Great Bay Resort from Feb 13th.

Cons:
-Ok room, but it was not facing the ocean as we had originally booked and because the hotel was at capacity, they could not switch us to another room.
-We are in the 30-35 age group and we were the youngest ones there. I would say this is a resort for the 50+ crowd.
-Not enough nightly activities for us, but again, we were a lot younger than the crowd there. There was karaoke, but that was about it. There is also a casino on site.


Pros:
-Great variety of food and it was always very yummy! Good job to the chefs!
-Great service by the waiters/waitresses. Always happy and helpful!
-A 10 min walk along the beach or street to Philipsburg with all the great duty free shopping
-Good mixed drinks :)
-Great pizza at the lunch bar by the beach

Note:
This is one of two all inclusives I believe. Sonesta Maho is also inclusive but it much closer to the aiport and the Sunset beach bar where people like to go to stand on the beach and have the planes fly right over their heads. A cool experience. Maho is also close to an area with shopping and restaurants. Maho also looked like an older crowd, but I did see families with young children. I believe they use the Sunset beach as they do not have their own beach.

Tips:
-Rent a car if you can. Its a beautiful island with lots of little beaches and you can drive the island in practically 2 hrs or less.
-Orient Bay is pretty cool. Check out The Original Bikini Beach for some good calamari. We also ate at a restaurant along the beach that started with a "K" (but i cant quite remember)....it had great pizza!
-Sunset Bar or Beach is cool to see the planes and the food and drinks are priced decent. I had the ribs and fries at $13 (I think) and it was great!
-For Canadians, take US$, they accept US and Euros mostly.
-Bliss night club is pretty cool place to check out if you like dancing. Its right beside the Sunset beach/bar.

The view from the oceanside of the hotel is fabulous. The property is well laid out and all amenities are easily accessible. Everything is well kept up and clean with the possible exception of the beach which needs raking -- broken glass and sharp shell fragments are a hazard to bare feet. Recommend you wear beach shoes.
They should really replace the flooring in the elevators. It does not have satellite TV -- a handful of cable channels.
There's an abrupt drop-off at the waters' edge which can be a challenge to older swimmers or young children.
If you plan to go scuba diving with the inhouse shop, be prepared to be up to your ears getting on the boat. Bring a dry bag. The staff are very accomodating and professional, with good adherence to safety protocols. You can also call Scuba Fun who will pick you up for free -- their boats are boarded at a dock behind the cruise ship area. You will be happy with the service from either shop. Be prepared for 5 foot swells, current and a surge at even 50 feet.
The food is of good quality, however after a week becomes rather repetitive (typical of all-inclusives). Tap water is safe to drink. My bar fridge was freshly stocked every day with bottled water, beer and soft drinks. Decent quality brands of beer (Heineken), other alcohol brands, servers are outgoing and pleasant and don't skimp. The wine is disappointing.
If you want to do some sight seeing consider renting a car. Taxi rides are about $15 each way into any of the hamlets (do negotiate with the drivers). Once couple stated they rented a car for $99 for the week.
There's a small casino with all-electronic machines and games on site just off the lobby.

This resort is really basic and needs urgent a refurbisment. When we arrived, we must wait til 5 PM for our rooms (we were 2 families travelling together and we were located in really far away rooms). We stayed 7 nights, so we could appreciate really well the resort and facilities.
The best thing I can say about the hotel is the LOCATION.
Phillipsburg was a short walk from the hotel (don't do it at night. St. Maarten is a ghost town after 8 PM).
The beach and the view are awesome. But after 10 AM it is impossible to find a umbrella.
The rooms are in really bad conditions. We got a room with Mountain view, but it was on the first floor and it really has a “street view”. The balcony was stone made and the room was very dark. My friends got a much better room (same side of the building) for the same price on the 6th floor. Very unfair.
We try to change, but the hotel was full and we couldn’t. We were with our two kids and the double beds were so small that we had to ask for another bed and join the double beds to sleep the other 3 people.
The pools were OK and the poolside bar was excellent.
The staff is really helpful and warm, specially Vanessa at the pool bar. And the lady from the omelettes, really nice too.
The food was tasty, but too much repetitive. The desserts were always the same: pastries. Very boring.
And this is an advce to all the people who is thinking about going to St Maarten: Just leave this destiny as a cruise stop. It’s OK for one day. But at night here there is nothing to do. Even at the hotel. Everything closes when the ships leave the port. Maybe a couple of bars are open, but with 2 or 3 tables with people. Nothing to do at night. We must stayed at our hotel every night and the activities were finished at 10 PM. There was a Casino (with virtual croupiers)... empty; and a disco…empty. Very boring. St. Maarten is not a destiny for fun and entertaintment at night. Unless you just want to sleep at night.

Vacationed at the Sonesta Great Bay and were treated wonderfully by the reception staff when we arrived, by the servers and had a blast with the activity staff. We also enjoyed the location, such a short walk into Philipsburg. We could see the cruise ships sailing in early morning as we layed in bed looking out the patio doors :) very pretty. We went out one day with Capt Bob on a modern pirate ship with 6 other couples and we had a blast. Every cove we explored was breathtakingly beautiful. Some of the reviews complained about the rooms, the dampness and so on, well sure it could be all that but c'mon your on vacation ! We enjoyed ourselves, the only thing lacking is nightlife.