This was quite a difficult review to post as the stay was not what I expected and ruined my stay in Prague.
Pros- very modern decor, great location - can walk to everywhere in the old town in a few minutes, big shower. Clean and plenty of space, lots of mod cons including a coffee machine. Nice original features.
Cons- my main issue with the flat was the temperature and the noise. If you're in Prague for a stag do and don't plan on sleeping then maybe it would be fine for you- but it is a first floor flat above a busy street with old windows that let in a lot of sound. I really struggled to sleep with early morning bin emptying, crashing and banging opening shops and drunk people shouting late at night (and I am not a light sleeper!). This ruined our stay. The flat was also boiling hot when we arrived- I think from the boiler as none of the radiators were on- this compounded the problem as we couldn't open the windows because of the noise!
We let the owners know and they did reply quite quickly and arranged to get someone out to turn it off- I *think* this happened (meant a stranger coming in with all our stuff there when we weren't around) but it didn't really help much.
It was not a warm time of year (8-12 degrees during the day!) so I can only imagine how uncomfortable this flat would be in the summer.
I actually almost left after the second night to stay in a hotel as the noise and lack of sleep really ruined our holiday. Would not recommend for this reason.