Petra's apartment is amazing. Small enough to be cozy but not feel cramped. It was very clean but looked lived in so you didn't feel like you were invading someone's space. We felt instantly at home. You are very well catered for with cooking and cleaning items and toiletries.
The bed is a little lumpy but comfortable. The apartment was really warm even though we only had the heating on the lowest setting. Internet is very fast.

Petra is a very knowledgeable host and helped us with directions and bus info on getting to Prague airport. She knows a ton about the area and gave us info on various bars, restaurants, sights and shops.

The apartment is literally a 2 minute walk to the Prague main square but it is very quiet and safe with some great places to eat and drink (the Argentinian bar does good cocktails and the fish and chip shop is a must after a night out). Everything you could want to see and do in Prague is totally walk-able from the apartment (get a Prague Card!).

The only downside is the toilet being outside of the apartment. It is only a few steps out of the front door along a balcony but in the minus temperatures and the dark of night it isn't ideal. It is also very cramped in there and didn't smell too good either.