I came as a solo traveler on a budget, and Seoul Cube exceeded my expectations. The location is so convenient, and the property is very clean. Including breakfast in this price is a huge bonus. I was in the smaller room with just 8 beds and the room was very quiet even though it was fully booked. The pod has enough space and privacy for sleeping. The only thing I would say to keep in mind is that luggage is left outside so there isnt much space to open your suitcase and pack but its manageable. I stayed 5 nights and I'll definitely book again if I come solo (I've already visited Seoul several times and I know I'll visit again).
This place is the definition of overcrowded. The rooms smells really bad. The bathrooms you are not suppose to flush the toilet paper. So you can just imagine the smell. The lockers were so small you can barely fit a travel size backpack. I would definitely pay a little bit more for something a little nicer next time.