This is not my first time I’ve stayed in this hotel. It is very convenient if you have business in Gaithersburg or surroundings areas. The location is very good with a reasonable offer of restaurants within walking distance at the Rio Center. I’ve reviewed several of them, not my favorites but for sure a good option for a casual bite in limited time during a business trip. This hotel offers a good restaurant and bar with a good menu.
The property is very well maintained. It is all you will be expecting from a Marriot hotel so no big surprises, the standard room clean, good bed and pillows, and all the standard amenities you may want. Something that I really did not like it was the lack of a safety box in the room. I travel form abroad and bring cash passport and other things I wanted to keep safe when I was away. May be you have to request a room with safe deposit on the front desk but today this is a basic thing and the hotel management should consider this.
There is a free parking lot so if you are driving a car this is not a problem.

The only problem I had was that I was not able to book a corporate rate from outside us they charged me more than 300 usd per nite, but after a complaint the returned the difference.
Thanks

Stayed here on a weekend for a wedding and was thoroughly impressed. The late night check in person (can't remember her name -- ending in 'rose though pretty sure) ensured we got a room having a lake view as we requested. Forgot our toothbrush and came downstairs and they were able to give us some for free. It's small things like that we appreciate. The morning room service breakfast was quite good and economical. It's small things like plastic forks and spoons, but ones that have thick handles and thickness to make it feel so much less cheap. Even the napkins they put them were of a high grade quality. Both eco-friendly and makes guests feel welcome. The location is great and it was nice to get up in the morning and see people running/walking around the lake and seeing the duck boats. Again though, can't recall one person from housekeeping to the restaurant or the front desk or the wedding we were attending there that hit a wrong note. We usually stay at pretty high end hotels and I could say the people staffing this hotel were getting to a luxury hotel level of service and friendliness. Each person we met seemed like they were actually liking having to work there. Close to shops and restaurants. It was a great wedding location and the service is really quite great.