The ‘new’ aft grills suites on QV were a test run for QA. Having occupied 8178, I can confidently say the finishings are beautiful, though you’d sure want to keep hands away from the glossy wood panels (must be a pain to clean - another reason to tip stewards).
I’d say the QA will look amazing too (love the colour schemes) and look forward to sailing later this year.
That said, 8178 did feel more cramped due to some design elements like including a partition wall between lounge and bed. I felt the coffee table was also too large for the lounge space. It seems that the suites are smaller than on the other ships so I hope they get the furniture sizing right.