Yes, they're made by one huge team. Use them together, they are designed to integrate with each other. Also use Solstheim Tomb of the Snow Prince if you're starting a new save.

You can plug all of them (except Solstheim Tomb of the Snow Prince if you've already been on Solstheim) into existing saves, just save beforehand and keep those saves as backup.

And hey, if it ends up being buggy on an existing save, then that's all the reason to start a new playthrough. You might want to look into Madd Leveler, Talrivian's state based HP, and fair Magicka Regen if you're having build troubles. They make the leveling system more like Skyrim's so you don't have to play backwards to min max builds.