One of the cleanest hostels I've stayed at. I was a bit nervous about space, but the beds are actually roomy. You get a little under the bed locked storage, which is handy. It's in a very very central location, so you will hear a bit of noise from people in the street. It didn't bother me though!
My only issue was all the stairs, it's on the fifth floor and it's all stairs, so I wouldn't recommend having too much luggage (or weak legs like me). Will definitely stay again if I return to Riga