The place is definitely conveniently located for those who have early morning flights. It's a stone's throw away from the nearest station and maybe a 2 minute walk to the station entrance with an elevator towards the platform for the airport train.
Space was definitely wide, but the drawback was how the lights will all turn on simultaneously in the room, waking up everyone. We managed by using the nightlight when one of us gets up early until everyone was pleasantly awake.
The heating was good except in the toilet area where it can be freezing in the morning. Good thing the toilet seat is heated.
The shower area can be a tight squeeze for people taller than 170 cm unless you're fine with showering with the shower door opened.
There was no dry rack for plates and mugs. The bed was also too soft, so don't jump.
Plenty of convenience stores and supermarkets within 5 minutes of walking. Also, amazing restaurants, especially that coffee shop in front of the A2 Kuramae exit.