Martin is a great host, and his apartment is very beautiful and cosy, and very clean as well. The apartment is located in a secure and quiet area but easy access to the city centre with tram stop right in front of the apartment. I was arriving late without any mobile and wifi connections to inform Martin (which I'm still very apologetic), but he was still very nice to me.
I was quite busy with my work back home, so I actually didn't plan for my journey before arrival. Martin was very kind to show me which places to go with cheapest budgets and which shops and cash machines with honest currency exchange rates.
Prague is very beautiful and Martin's place is cosy and nice, and my only regret is I stayed in Prague for too short. Next time I visit Prague, I'll definitely check for Martin's apartment first. Highly recommended!