this is my 3rd day wearing the invisalign and everything is going smoothly. I did feel a little pressure initially; more on the bottom tray verses the upper. I have more crowding on the bottom. Invisalign prescribed 17 Upper trays and 18 Lower trays. Not bad, that will give me about 9 months until I see my perfect smile. No one at work as noticed them. I smile and talk normally. The only minor complaint I have so far is that the lower tray is rubbing against the back of my tongue and it's sore. I bought othro wax and it helped a great deal. I plan on doing a salt water rinse tonight to help with the healing. The side of my cheeks are adjusting to the trays and not irriated any more.
Overall, I am very pleased. my only advie, PRACTICE PRACTICE taking them in and out for first day. I hope this info helps.