Service from all staff we encountered was great - they were friendly and helpful, even when I appeared at 0230 asking for another pillow and duvet.
We'd booked a family room and there wasn't enough bedding on arrival. The water pressure was also pretty poor both in the sink and the shower.
I'd have to suggest that the room directly underneath the entrance lobby (B07) is best used as a staff rest space rather than a paying client's room - it's very noisy all day (and most of the night) with people walking overhead, moving chairs etc, and it's pretty dark as the walkway to reception blocks most of the light.
Quiet location, very close to the shopping centre, a nice pub and good coffee options, as well as 4 tube lines. I imagine if we'd been on the ground-floor or above, it would've been a great stay.