Am I going to have to sit through an unreasonable amount of jiggling tits?

No not at all. The only boob jiggle type moment I can think of happens many episodes in and lasts about 5 seconds. Default throughout the show you aren’t getting constant creepshot angles or focus on fanservice. The show or, more or less, of a wholesome tone that sometimes dips into some series moments. There is a catgirl later on, but she’s actually like cat-girl with an emphasis on cat like behavior and is a good character who is dressed slightly lighter than everyone else but nothing you’d think twice of seeing.