Good - I was on business trip in Prague and stayed at Intercontinental, Prague. I took limousine pick up from hotel because it was my first visit to Prague and I arrived on Sunday night. The check in and check out were quick. Breakfast was included in price and it was very good. I forgot to take toothpaste and asked for help and they came back to me in 5 minutes with a toothpaste. The gym was very well equipped and the staff at the gym were friendly.
Bad - The room I stayed has very poor internet connectivity and I heard that my colleagues had similar experience. The connection was very unstable and when I was able to connect it would disconnect every 5 minutes. The free service the hotel gives is I think 256kbps!.