The building is in a good location but it is really old and in need of maintenance/refurbishment.
We stayed for 3 nights/ 4 days and incredibly didn’t include daily room clean and only got toiletries enough for one person one night, when I asked in reception they said minimum 1 week stay qualifies for room cleaning. So in the end had to go to reception everyday to get soap/shampoo/towels
Separate lift access card to the room key and they get damaged easily, again requiring a trip to reception.
They have spa, sauna and pool but spa was not working and sauna looked a bit in bad shape and sauna amenities quite dirty.
Only positives, location in front of Hyde park and near museums, and view from roof top pool.