This location is very loud, especially in the morning, so don't expect to sleep in, ever. If you stay in her 2nd room, which requires her to come unlock it, you can cut out a lot of the noise, as it's further from the street. It was just unfortunate for me, because of my work schedule. I would finish at 6am, and then maybe get 2 hours of sleep before the noise was too much to handle. Was there an entire month and probably slept an average of 4 hours a night.
My lack of sleep could have further been exacerbated by the beds not being very comfortable at all. We were piling up blankets on top of the mattress to not feel the wood slats under the very thin mattresses. I ended up sleeping on the couch most nights. If I slept on the bed, I would wake up in lots of pain and severe loss of circulation.
The internet is not very stable. There were many nights that I went without internet, or painfully slow speeds for several hours. This usually occurred between 9pm and midnight. Again, unfortunate for me, because of my work schedule there, which was 10pm to 6am.
Now that the bad stuff is out of the way, the place was fantastic! Very spacious rooms, and even more so with the high ceilings. Interesting art on the shelves and walls that ended up being the centerpiece of several skype conversations.
Perfect location. Just close enough to Old Town to be able to walk there in 15 minutes. There are 2 beautiful parks less than 5 minutes walking. 3 tram stops within 5 minutes walking distance. The local grocery store is one of those tram stops, so getting food every day was simple and convenient.
If I were in Prague just to visit sights for a week or less, I would absolutely stay here again without question. If longer than a week, I'd look into somewhere with more comfortable beds. Working an odd schedule like I did made it less enjoyable.