They are actually in the process of updating this information - on booking.com it now says "Regent Warsaw Hotel" (Hyatt sign not yet removed from the photos ).

Still staying here right now, I am happy to confirm that most if not all of the old staff is still on duty (except for the GM) and service remains stellar. Executive lounge spread, breakfast and all the other goodies are still just as great as ever.

Unless something very dramatic happens within the following days of my stay, I will certainly remain loyal to this hotel even though it does not carry the Hyatt brand name anymore.

Hope to find the time to ask some people here about details before my departure on Wednesday. If Hyatt and not Cosmar should be to blame for the rushed debranding, this was a BIG mistake, IMHO.