It's a nice place. I arrived late (4am) because my flight was delayed a lot, so they charged me 10 euros extra, tbh I don't know if this clause is written somewhere but I didn't know, and I was so tired that I payed without hesitation but it is an important fact to know. Bedrooms are nice. Bed's are not private (it's just a bunk bed, not like those "cabin beds" where you close your courtain), but they're good. I stayed in a 6 people bedroom and it was nice. Sharing bathroom with only 6 people was way better than sharing it with many more or with the whole floor like in other hostels. The hostel is 20 min walking from the colosseum, 30 from trevi, 45 to trastevere, 1 hr to the vatican. It is very centric but it is not in the historic center area so take that into account if you mind walking too much or if Trastevere or the Vatican are in your "must visit" list.