We stayed here for about 4 weeks and it was amazing. The location is nice and quiet. It is especially safe, considering it is a stones throw from the US embassy. The apartment is a safe distance from the noisy tourist areas but close enough to stroll into old town without much hassle. Prague Castle is about a 5 minute walk. Being close to trams made it easy to get around the city.
The apartment is well stocked with everything from cookware to cleaning equipment. The washing machine was a huge bonus. Basically, everything I needed I was able to find somewhere in the apartment. Also, on the same street, we found a really nice vegetable store.
If you are sabbath observant, entry into the building is non-electronic and the Old New Synagogue is about 15 or 20 minute walk. Stove is glass top without self-cleaning option. The sink is stainless steel. Many of the metal pots there are kasherable. Kitchen also comes with a hot water kettle.
If you plan on taking public transport from the airport, make sure you coordinate with Hana. She came to meet us at the station and we didn't realize this and ended up wandering around trying to find the apartment.
Hana is a great host. The maintenance guy lives in the building and he was able to respond very quickly to an issue we had in the apartment. Overall, great location in the city without all the noise and traffic.