I think it's about as a good a value as you will get in Phnom Penh. I'm not sure if it's quite on a Hilton or Sheraton level, but it's pretty close. I don't think they have coffee pots in the room though, and they don't have a lot of toiletries, just a small tube of bath gel and conditioner.
If you reserved a King room, check when you walk in to the room that it's one large bed with one large head board. Some of their rooms have two twin beds pushed together, covered with one sheet. You can tell because they have two headboards together.
There is some construction going on too, so look out the window and if you see a construction dude looking back in, ask for another room.