I'm about halfway through my Invisalign treatment, and I'll be starting as a D1 in the fall. It really isn't much of a hassle after you get used to having the aligners in. It definitely feels weird for the first week or two (it does ache a little at first too), but after that the only added inconvenience is taking them out when you want to eat. Well that and I feel like I have to brush my teeth after every little snack... All in all, I would do it again!