We arrived at the Siem Reap airport which is a very small facility. We had obtained our visa ahead and therefore didn't have to wait in line at the airport but it really is not a big deal since the planes are small and only arrive one at a time.
We had arranged for a car and guide and were met at the airport. Our hotel, the Princess Angkor, has been reviewed here recently so I won't say much except to say it is fair but acceptable. I don't think there are any "world class" 5 star hotels in Siem Reap yet but the nice ones are adequate. The Princess Angkor has all the amenities and the staff is very helpful and freindly. We especially enjoyed the pool and the massages (1 hour, full body massage with oil for $20).
We had a local guide and driver who were great. They spoke English and were very knowledgable about the temples. They also knew when & where to go to avoid the tour buses and crowds. I suggest you read up ahead of time about which sites other than Angkor Wat you want to see. There are about 200 sites in the Siem Reap area. We read ahead but didn't appreciate the magnitude nor diversity until afterwards when we read more.
You can go to the sites on your own but it is a little disorganized. It is no problem getting a car & guide for about $60 per day.
Cambodia is still fairly primitive. They suffered quite a lot during the Pol Pot regime and are just now trying to build up their tourist industry. The sites are mostly under UNESCO supervision but the Cambodians are trying, too. The restroom facilities are new, clean and conveniently and frequently located for tourists. While there are sidwalk venders, they are not permiteed past a line on the side of walkways to and from the temples so it is easy & pleasant if you want to avoid being hasseled. On the other hand, they have some interesting things and are really nice people.
The city of Siem Reap is more like a village. There is a modest amount of construction but dirt roads and sidewalks are not uncommon. The people are very friendly and there was no indications of crime. We felt very safe at all times.
While we didn't drink the tap water, bottled water and beer is plentiful and cheap. By the way, the use of the US dollar is very acceptable everywhere. Also, the Thailand Baht is used as well as the Cambodian currency so you don't really have to change money.
The food is also excellent. It's like a mild form of Thai food. We ate everything and didn't have a problem but we are cautious about uncooked things.
Most of the temple sites have restaurants nearby which don't look like much but they are very good.
There's not much night life but then again, if your touring the temples, you will be tired.
We also visited the floating fishing village and went on a boat ride on lake & river Tonle Sap. It is very intersting and I'd recommend it for a break from temple ruins.
All in all, we had a very good time. The temples are extraordinary.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC