A few nights last week at this new to Marriott hotel (formerly the Lisbon Penta).
Extensive renovation of the smallish rooms mostly finished although not many (if any) of the suites are ready for occupancy. The concierge lounge is also not ready and the construction noises, especially on the higher floors (the executive levels, of course), can drive you batty if you try to use your room during the workday.
The lobby is finished but the other public areas are being worked on and I do not know if any of the meeting rooms are usable.
If you are a Marriott Elite, they will bend over backwards to try to make you comfortable. Since there is no club, you will be given carte blanche at breakfast with no charge and each evening you will find a very nice fruit basket and litre of water in the room. Therefore if you go there in the next few months, be sure to ask for the introductory rate without breakfast.
This will be a really nice place when they have finished working on it (my guess is the end of March).