We were on Bliss in 2018, and will be sailing on her again in November. I'll have a go at some of your questions...anybody else chime in if things have changed recently. Shows in the theater, comedy club, and music venues are free (just get there early for best seating choices. Water slides are free. Local bar and grill are free ( except ice cream sundaes). Teppanyaki is a specialty restaurant, use your specialty dining credit, or pay a la carte. Don't know the difference in the cabins, we usually pick a standard balcony. Shows start around 7ish. Spa I have no idea as I've never used it. Hope that helps!
