The location was absolutely great being just a stone's throw from the west end of the Charles Bridge. So the apartment is broadly half way between the Old Town Square and the Royal Palace/Castle. It really couldn't be more convenient!

Inside, the apartment was as described on AirBnB. It was very clean and nicely presented. All of our group found the beds comfortable. We didn't do any cooking there (eating out can be very reasonable compared to UK prices depending on where you eat) but it appears to have sufficient crockery, pans, etc. if you want to cook in.
The apartment had the benefit of a separate loo from the main bathroom; handy for a group of 4! Also, there is both a bath and a shower in the bathroom.

Our host Ilan was great throughout. Good communication whilst booking the apartment and later on with follow up queries. He was very helpful when we arrived too. He booked the taxi to/from the airport on our behalf which went very smoothly. Taxis arrived on time along with "suited and booted" drivers in nice clean new cars. Cost was very reasonable. You have to watch out for dodgy taxi drivers in Prague so I would recommend letting Ilan book the taxi transfers for you if that's your preferred means of transport.

Our group really enjoyed our stay and we would have no hesitation in going back to the apartment or using one of Ilan's other apartments if we return to Prague. Go and enjoy.