Recently stayed at this hotel. It is still not signed/branded as a JW Marriott. However, due to an issue during my stay I had to interact with the front desk a lot. On my last interaction they informed me the re-branding and signage is going up this year so that means Q4.

The hotel was fine. Not JW standards but it does have a lounge (pretty small with horrible offerings, IMO) and the lobby is nice enough.

This is the first hotel I've been to that refused my AMB elite benefits (breakfast) to the second room I had booked. Flat out denied even though the check-in agent confirmed it would apply. After being charged for breakfast the first morning I was made aware of their policy of no breakfast for the second room and they were sticking to it. No big deal; it's not a guaranteed perk. It did a slightly sour taste in my mouth given every other hotel (London, other Berlin) I've ever asked to do this at obliged without hesitation.

-RM