Kai’s place is in a great area of the city, conveniently close to restaurants, malls and transportation. That's a win-win if you plan to explore and be active during your stay. The condo itself is very comfortable, it has nice views, your own bathroom, decent kitchen (a bit messy some times) and a great workspace for long stays.
Kai is a great host, very responsive and friendly, although You have to ask him about everything, which can be a bit inconvenient if he is not at the condo.
It might be helpful for him to print a small “rules and instructions” booklet to avoid the waiting time or any other misunderstanding.
One more thing, the place has a nice temperature most of the time, but it tends to get cold in the evening/night during winter (it is a 31 floor!) so it's better to pack a good set of warm sweaters if you're planning to stay during the cold seasons.
Overall was a great experience, just make sure to ask Kai about the “dos” and “don’ts” when you check in!