I have them right now and i have next to no complaints at all. It takes a little longer then braces but they are working fine for me.
The only time they ever hurt was the first weekend i got them, hurt like a bittchh.
The first day you put in a new set they are a bit tight but i always put them in on a friday and get drunk that night so i hardly notice.
And eating isnt as bad as you would think, once you get use to taking them out fast you can go stealth and take them out at the table if you are eating out. And you dont have to brush them after everytime you eat if you dont want.
If you have any questions let me know
Going skiing, then drinking instantly after until i black the fuck out. - eheath