I spent 10 days in the apartment. Michal is an extraordinary host for the Greg Apartment complex. He picked me up from the airport, was able to provide an additional night's stay after my plans changed, and he was always available when I needed.
The apartment itself was spacious, light, and had everything I needed. The added plus of a washer, heated towel rack, and coffee made my day. I plan on recommending these apartments to everyone who is looking to stay in central Prague.