10/10
Zzzip was possibly the best introduction to hostel living that I could have ever had as a solo female traveler. To start, Jina and Bryan were excellent hosts--very welcoming, helpful, and friendly. The rest of the staff were also super kind, and one of them even helped me with figuring out the laundry.
I stayed in a private room, which was conveniently furnished and had a nice, spacious bathroom. You can feel right at home with the TV and A/C. For the more extroverted travelers, the common areas provide a great space to hang out and plan excursions. The breakfast area was well stocked with the essentials, and guests can even store food in the fridge for some time.
Regarding location, the shops and tourist spots of Hongdae are extremely close. You will get a mix of both local small businesses and the more recognizable chains. In my opinion, there's so much to do in this area that you will get FOMO or decision fatigue no matter what! I would definitely go back to Zzzip if I get the chance.