The place is really great. Martina was out of town but it was easy to communicate with her and recive the keys. The place is cozy and perfect for a couple. All main attractions (including railway station where we arrived) are in walking distance - we didn't use bus or taxi (but if you prefer to save your legs public communication is really close). And on the way to Old Town you can have really good coffee at EMA Espresso Bar. At arrival to the apartment you will find many materials about Prague and what to see and where to be there - I enjoyed the most the one prepared by the hosts. There is quite good equipped kitchen and you will find basic stuff in bathroom (including hairdryer). When feeling exhausted you can watch TV - mostly Czech but there are some music channels also.
The host seems to be very friendly. We really enjoyed our stay. All in all - I totally recommend staying at Martina's.