Glou's is actually a hotel residing in a quiet residential area, about 6mins walk from Hisgashi-Shinjuku station (from Entrance A, I believe). The room appears to be new though very small. For an average-built Asian, I found the bathroom a tight squeeze. I believe you can find more spacious Airbnb units for the same price. Friendly and certainly helpful reception! They have a washer (300yen per wash) and dryer (100yen per 20mins). You need coins to operate this but you can get change for the reception. Just note that you need to check out at 10am and check in at 3pm (and this is the same for most places in Japan I think). So if you need to leave your bags in Glou, they charge about 800yen for a large bag for the whole day. They do not have much space to store luggage.