This apartment is pretty much as described. The location is excellent - it is literally around the corner from the Old Town Square! It's hard to beat a location like this.
Oleg's description of his place is pretty accurate, so take note - this is a very basic apartment with very basic furniture and few amenities. If you're ok with that then this is a good choice. It's worth climbing the 102 stairs to be so close to the Square at such a reasonable price.
Oleg's communication was great and Katerina even welcomed us with mulled wine (svareny vino)! We enjoyed our stay in Prague.