That's interesting info, thank you! Seems like a great excuse (if ever one was needed) to book another TA!
I'd agree that the spa and relaxation area (especially) are fabulous. Unfortunately we only used it about 3 times despite a 7 day pass (I don't recall there being an alternative to full 7 day pass on this crossing but I may be wrong). There just aren't enough hours in the day, even with the added hour most days! I do hope they offer shorter, customer-focussed options again in the future.
(I have now adopted 'tubing recliners' as a technical term...can't think of better😄)