(We had a tame erotic massage with most of the boxes crossed off.)
It is one checklist for both of you, not each, so that's an interesting way to encourage both halves of your couple being on the same page. For us, at the end they pushed the two massage beds together and left us alone to have sex. They told me they were leaving, but didn't tell my wife and there were towels over our eyes, so it was fun touching her and her realizing it was me and giving a big smile. One of the check boxes gives you the option of the masseuses staying in the room; we talked to another couple that did that and the masseuses helped push their hips together, but weren't in the middle of things.
If you go it alone, you might ask to have the masseuses leave some massage oil around to play with, since for us they didn't leave any bottles around, and we just had a thin amount left on our skin. I checked and the cabinets were all empty.
Afterward the warm-but-not-too-hot courtyard tub with chocolate strawberries and champagne was fun. After the tub we sat in the interior lounge and had some nice teas and just lounged in comfy chairs wearing the spa robes, which was very relaxing and chill after everything, and we could stay there as long as we wanted.
They have these little door hanger cards that say "love in progress, please come back later" on one side and we swiped one as a souvenir. We have fun hanging it on the door now and then. The "please, clean the room" side doesn't seem to work