We were in Prague for 4 days in May and thought the place was perfect. It's in a super-central location, close to everything, but in a quiet street. The weather was warm and sunny, so we really enjoyed the balcony. There's a little supermarket around the corner, as well as a coffee shop, a bagel shop, and a few restaurants and bars. The apartment is very clean, new, and comfortable, just as pictured. Towels, soap, shampoo, as well as soluble coffee and tea are provided. It's also worth mentioning that the light in the bathroom is very bright (good for doing your make-up) and there's lots of shelf space, which I personally appreciated. Checking in and out was easy, and messages were always answered promptly. I really hope to be able to stay there again in the future.
BTW: We parked our car at the National Theater (Narodni Divadlo) for 4 days. It's a 5-minute walk from the apartment, and we ended up paying ~21 EUR per night.