Our stay in the apartment was really nice. The apartment is big and clean and there's almost everything you need for a short stay (missing a hair dryer!). The kitchen has the things you need for a smalll meal, but not for more complicated cooking since there's no oven etc. There's also a freezer, which is very nice.
The bathroom has a nice bathtub and a washing machine. The shower head has no "holder" on the wall so you have to hold it yourself but since this was the case in all of our four accommodations in Czech Rep., it cannot be seen as a minus.
The location is convinient, next to a metro station but you do need to have a public transport pass - we walked the first day and according to Google Maps it's 3.5 kilometres and a 40 minute walk to the wenceslas square. No way a "seven minute walk" but yes a seven minute metro ride. Like previous reviewers have said, the neighbourhood is not very pretty but it felt safe and we spend our time in the centre anyway.
All in all, our stay was really pleasant and Radek seemed nice and answered very quickly. Would certainly recommend, just be warmed that you need to use public transport and that you could stay in a much nicer area. But the apartment was so nice that it made up for the location. And metro is so convinient in Prague that you'll be quickly in the centre anyway! Thank you Radek again for hosting us, we had an excellent trip!