Location: good place, close to the city center (1-2$ Tuk-Tuk ride).
Rooms: have seen their best days. If your are stayin in the main building, you most likely have lots of problems sleeping. Noise from the lobby can be heard to all rooms. Since many of the customers wake up at 5am to go to Angkor Wat, you are most likely going to wake up to that..
Pool: big pool and clean. Althought areas around it are in rather bad condition.
Bar: elephant bar looked nice and there was also good looking afternoon tea available.
Other services: very expensive. I.e. Transfer from hotel to airport (10min) costs 30$ feom the hotel, under 10$ from a local taxi. Currency exchange, do it elsewhere.
Staff: nice but not very professional.

This is a very pretty hotel. Keeps all the colonial charm of the original building. Staff is very nice. BUT it is so noisey. You can hear every person walking down the hall. There is no buffer between the door and your bed. We had the top floor and I can't imagine how bad it would be to be lower near the lobby or the terrace restaurant. And since some people leave early for the temples noise begins at 6AM. At these prices I would suggest you research another hotel and come over to the Elephant Bar for a drink.

While we were happy but not ecstatic with the Raffles at Phnom Penh, this one was a pleasure to be in. Well-located, very nice - and good - restaurant in a beautiful terrace, a very nice pool, and impeccable service. The rooms are OK, basically exactly the same as the ones in Phnom Penh. Importantly for Angkor, they have a well organized process of temple and site visits, with enough variety of arrangements to accommodate your budget. The staff are professional, charming, and reasonably fluent in English.

There are 2 down-sides though:

Over the whole stay the General Manager was nowhere to be seen. We asked to see him twice, and in both instances his deputies stood-in for him. They did meet our need, so no issue there, but a General Manager in such a resort should be visible and available, especially when on his welcome letter he underscores that we can contact him directly at any time (incidentally he doesn't give any contact info in his letter..).

A second down-side was the mandatory New Year's dinner, which was very pricey ($1,000 for a family of 4 with 2 young children) but not particularly good, nor was the entertainment, where we clearly had 2nd rate performers (but not a second rate bill..).

Other than that, we strongly recommend the agency we used for sight-seeing, called 'Angel Angkor Tour'. I would in particular ask for Mr. Lmut Dara. He can be both a guide and a driver, he speaks very good English, and is very pleasant and accommodating. You can reach him at +855.9777.55.076.

Best.

I recently stayed at the Hotel for four days with my family. The experience was wonderful. Meals were amazing, staff was incredible. Hotel is beautiful and centrally located. I highly recommend the Hotel if you are visting Siem Reap.