Thomas's apartment was amazing! While we found the apartment to be clean, comfortable, and well appointed, the view over Old Town Square stole the show. We had seen pictures on the site, and had assumed that they were stock images from Prague, but that was not the case. The apartment looks out onto to the square. Since we were there from December 30 - January 4, we had a front row seat for the New Years celebration without having to be in the middle of it. That was a highlight of the trip that we won't soon forget.
Just a note for future travelers, the apartment building does not have an elevator, so you will need to climb the steps. This wasn't an issue for us, but it may be for others. Also, there is construction ongoing in the building (as many others have pointed out). We didn't hear the workers at all during our stay, but there was some construction dust that we tracked into the apartment.
Also, the apartment is located on Old Town Square, so noise may be an issue for light sleepers. For the most part, it didn't matter for us, but we can see how others may be impacted.