Lumineers are a very bad idea. The "short amount of time" to apply them turned into several months and dozens of visits, back and forth, because of chipping, cracking and just falling off for no reason.
I have finally decided to cut my losses (20k) and find someone to fix the mess my dentist made of my mouth. The emotional stress was too much to handle. I had one pop off on NY Eve one year. Not fun.
On my wedding day, I carried a tube of Krazy Glue in my tuxedo, never sure of when one would come lose. Save your money...do traditional veneers.