I had an absolute blast here. The hostel itself is great for the price. It's clean and cosy, with a small kitchen, a couch, lockers and also a retro arcade. Loved all those geeky decorations. The staff was super friendly, helpful and let me check in by myself due to my delayed plane. Zero cons here.
The location is super convenient: just a minute of walking from the Lepanto metro station, 15 minutes from the shuttle bus stop to/from the Fiumicino airport, less than 20 minutes on foot to the Vatican, the Castel Sant'Angelo or the Pantheon.
Practically I didn't use public transportation at all and just walked everywhere I wanted to be. In the area, there are also a lot of small cafes (one is right next to the hostel) and family restaurants with authentic Italian dishes for great non-tourist prices. Don't dine in the city centre, eat around here instead. Close to the hostel, you can find supermarkets and Italian ATMs. If you use a Revolut debit card, you won't need to pay fees for withdraws.
Overall, I definitely can recommend staying here, the service was awesome, and the location was superb. Enjoy your stay in Rome!