Onefam Sungate vs The Hat Madrid for a first-time solo traveler?

Hey everyone! I’m planning my first solo trip to Europe this winter and I’m trying to decide between Onefam Sungate and The Hat Madrid.

I’m 25M and I’ll be traveling around Europe for about 5 weeks, starting in Madrid. I’ll be there for 4 nights, from Dec 30 to Jan 3, so I’ll also be spending New Year’s Eve there.

This will also be my first time staying in hostels, so I’m a little nervous about the whole shared dorm experience, but a big reason I want to try hostels is because I genuinely want to meet people. I’ll be traveling alone and I’d love to find people to explore the city with, go out for drinks, grab food, etc. I’m definitely social and I enjoy going out, but I’m not necessarily looking for a hostel where the only thing to do is party until 5 AM every night lol.

Location matters to me too since I want to walk around Madrid a lot and actually experience the city, cafés, bars, neighborhoods, etc., rather than just jumping between tourist attractions.

I’ve narrowed it down to Onefam Sungate and The Hat Madrid. From what I’ve read, Onefam seems to have a reputation for being extremely social and good for solo travelers, while The Hat looks a bit nicer/more comfortable and still seems social, plus I really like the location and rooftop.

For someone in my situation first solo trip, first hostel experience, 25M, wants to meet people and go out but also wants to actually enjoy Madrid and get some sleep which one would you choose?
I’d especially love to hear from anyone who has stayed at both.

Also, if anyone has spent New Year’s Eve at either one, I’d LOVE to know what the atmosphere was like.
Thanks!