This hostel is more on the expensive side, but for this you get great staff service, super clean rooms, showers & towels - they also have a movie/theatre room, free popcorn and nacho nights and free tea and coffee. The food here is really nice if you don't fancy venturing. The location is ideal if you want to hit the shopping malls. It is very easy to use the BTS and change to the underground/subway. Only slight negative is if you're not into shopping then there isn't much in the immediate area.
If you're looking for atmosphere then I wouldn't say this is the best place. It's right on Khoa San road so location is ideal for backpackers. I had a fan room, so was a little hot
Blanco bar is on the main strip of the beach. There are no locks or keys for the dorm rooms