This is a whole apartment to yourselves, and you get a balcony! The location is good for traveling, not for walking. I say this because the apartment is right in the middle of the triangle where all the metros intersect, so you can get anywhere very easily. However, you are a good deal away from Old Town Square (compared to other places). This apartment is right off of Wenceslas Square, and had good stores and restaurants near by.
Jt is a good host, although he didn’t send our check-in instructions when he said he would, when we called him he answered and sent them right away. Very responsive, just slipped his mind! The apartment is great, and has an elevator!
One note, he did not allow us to store our luggage until we left. You have to get out at checkout time. But he let us know you can store your bags at the main train station (one block away) and we did, for about 60 czk, which is very cheap.