I've had mine for almost a year now and I think after refinements it'll be 2+ years for me. I suppose it depends on what type of person you are and if you have cash to burn... There have been times when I haven't worn them as much as I should have e.g. weekend music festivals where there is no running water in the arena is a COMPLETE nightmare - avoid these is you can. I have 2 this year LOL!
But it's not that bad really, the thought of it is worse. But there are people on this forum that despise their invisalign & would imagine that these people are more likely to give it up. I'd say go for it as long as you're willing to flash them off and let people see how amazing they are vs. traditional methods. They are not invisible - close up you can see. You may also lisp sometimes & you definitely have to brush after eating/drinking so you won't be able to keep it a secret
I love mine.
U31 & L23 finished.
Refinements U9 & L9 of 13 or 16?!