I visited Prag with 3 of my friends. We were afraid that there wasn't enough space for us all to sleep, but it was not a problem! Adelas home is very nice and she provided us with everything we needed. The location is not really central, but for very little money you can take public transportation to all sights in Prag in approximately 30 minutes.
Unfortunately I couldn't meet Adela myself, but my friends told me that she is a very sweet person! I would definitely come back!