What can I say? It's one block away from the middle of Ocean Drive, and everything you may need is at walking distance. The staff is really nice and proactive. Juan is a fun and cool guy, and so is Sheila. They're very invested in keeping the hostel fun and chill, with weekly activities and help all-around. Also, shout out for the cleaning staff, they're all great and hard workers. Bare in mind that, especially in hostels, most of the cleanness depends on (you and) your roommates.
As for services, they give you a towel, soap, shampoo, and everything. The bathroom mat can get wet soon, maybe they should give a couple. The beds have a little tent, USB chargers and lights. The lockers are big (bring your own lock). They have a library/room with 2 refrigeretors and a microwave. The fridges were barely sufficient for all the people, I would add another one or put bigger ones. But ultimately you can make it work.
There is also a terrace, a restaurant, an inside bar, a speakeasy for late night, an outside area with two small pools and another super cool bar outside (shout out for Nate here).
This hostel is the most expensive in South Beach, but it's defenitely the best in the area, don't even consider the other ones that pop up. You may look into Generator/ Freehand. They're good, but they are in Mid Beach. South Beach is the best. There's nothing in Mid Beach. And I'm not even a "party guy". Recommended.