This is my second stay at the Hyde and probably my last. The first time I think I have it 4 or 5 stars, this time I'm a more experienced Beijing visitor and am giving it 3.
The good points: it's cheap, clean, the a/c works, and the beds are comfortable. So if you're looking for an inexpensive place to crash, it's fine.
Main negative is the location. It's on a narrow and shabby alley (a hutong). First time I thought it was cool in a third-world sort of way. Now that I know the city better, I see that it's just a crummy neighborhood, smelly and dirty. Not dangerous, just sort of rundown.
Also, the standard room is really small, with no space to even put your suitcase, and the shower is just jammed in between the sink and toilet. So if you stay here, definitely upgrade to the "family suite" which is much better.