Jaroslav was not able to do the check-in in person but he left the keys in the coffee house right beside the apartment with very detailed information and tips about what to see, places to eat, etc. Also left a voucher to use in Marty's Kitchen (the same where he left the keys) which was really nice and the coffee is good :)
The apartment is very well equiped, very close to the metro station (3min walking) and not that far from the center, it has a lot of restaurants, stores and supermarkets around, really great place and really good ratio quality/price.
I highly recommend Jaroslav apartment for a really nice stay in Prague.