I think AST is reasonably satisfying to play. The cards are uninteresting, but I enjoy being able to weave something every GCD, and the cards still require some attention even when there's no healing to be done. It plays smoothly and the kit feels holistically designed, if bland, which is not something that can be said for the other two healers. Not having to worry about double weaving also helps because it allows the first half of the GCD to be spent on planning and triaging. Not to mention having the best movement tools out of the three. Sure, the flavour isn't there, but the kit fits together.

The other two are rather miserable though, with no real good movement or weaving options as well as clunky resource mechanics. WHM is the least fun for me, while I can't enjoy the optimal way to play SCH but at least ruin 2 exists and art of war is satisfying in dungeon pulls.