Have them and LOVE THEM! For me, there was no other option because they were going to be cheaper and they involved less time. I also felt more comfortable in the office that was doing the Damon's (they apparently specialized more with adults than the other office did).
I love the concept of the half clear/ half metal on top. They really are less obvious when you smile. The rest of the brackets will be metal though and don't count on colored ligs, because well... they just don't happen (in most cases). If you want colors, you will have to wait for elastics and or powerchains.
I like how my adjustments are so far apart, yet my teeth continue to move throughout the whole time. I have gone in for "mini adjustments" that were not scheduled between all of my routine appointments just to help with comfort and bite. The adjustments for me are still at 10 weeks apart and I have had them for over 5months, so that means only 2 scheduled adjustments thus far (but I have gone in at least 3 other times for things to be adjusted/ sanded/ clipped... nothing has broken).
I have had springs, turbos, and elastics so far. I am having some cosmetic work done at my next adjustment and I was told I would not have powerchains, but we shall see
The wires are heat activated in mine, so hot liquids just ache. I find momentary relief by holding cool water in my mouth. Fevers are a nightmare because your mouth gets hotter and it is as if you can feel the braces working harder or something - strange feeling. Hot water on my face in the shower can even make me hurt, so I have to be careful. Hot tea is not pleasant and hot coco this winter really hurt, but sometimes I dealt with the pain because it was too cold outside to drink a soda.
Haven't noticed any staining of the clear tops on the top 6. The "doors" make adjustments rather funny... and sometimes it is hard to get a "door" open, which hurts a lot. The door concept makes me fear eating something sticky and having a door just FLING OPEN, so I have behaved pretty well since getting them on.
It has been a good experience, but I have had quite a bit of pain overall. They move almost constantly and I can see the progress, but they are painful (have nothing to compare it to). The pain is more constant and fluid, like I can feel a couple of teeth at a time being worked on.