On this trip, I first stayed in Busan at 'the van stay' for around 300 [currency unit, likely KRW or CNY], and everything was pretty good, including the hotel service. I thought Seoul would be even better, but when I got there, I checked into Solago. It was 900 per night, and I stayed for three nights, totaling nearly 2700. My personal experience was very disappointing.
First, it's not very close to the subway station. It's tucked away in an alley, not as convenient as Hotel G3.
Second, the front desk is entirely self-service machines, with only one staff member on duty. The self-service machine just gives you a ticket, with no one to guide you. You have to go to your room and enter the password yourself. The hallway felt like a prison – no carpet at all. The place in Busan at least had carpets and a hallway scent system.
Third, the room size is small. The walkway by the bed only allows one suitcase to pass through. Although there's a washing machine, it's incredibly noisy. I didn't dare do laundry at night for fear of disturbing the downstairs neighbors, and there was nowhere to hang clothes; I could only put them in the closet.
Fourth, the room only had one large ceiling light and a few downlights, all white illumination, which felt very cheap.
Fifth, the shower glass door didn't have a seal strip at the bottom, so a lot of water leaked out. I reported it to the front desk, but they only replaced a floor towel.
Sixth, they only provide two bottles of water for the entire three-day stay. You have to pay extra for towels, buy your own laundry detergent, and there are no disposable toiletries provided.
In summary: Compared to where I stayed in Busan, 900 a night here truly felt like terrible value for money. Personally, I think some guesthouses in Korea are quite good; they often have double-pane windows, showing they care about noise, and most are equipped with scent systems. This particular hotel, however, isn't as good as many people claim it to be. Seoul's public transportation is excellent, so you could definitely stay in Hongdae or a guesthouse near public transport instead.
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