The apartment was very clean and had everything that we need. The bed was a little bit hard for me (I sleep at home on a very soft bed), but it was still comfortable.
Check-in and out was great as Kim lives in the same building. The apartment was very specious of course and full of light during the day.
Also even though there was a bar downstairs, which you can hear while going up the elevator, once in the apartment, it was perfectly quiet.

Location wise, its a matter of taste. Regarding the tourist attractions location was great as it was close to everything. Regarding nightlife, if you like quiet bars for a drink, there were lots around, but if you are more into upbeat places like dance bars and clubs, Dlouha st. area is more for you.