I went for a shellac manicure. The manicurist cut my finger while working on my cuticles. He didn't allow time for it to heal, and he didn't clean off the scab. I now have a scab shellac-ed onto my nails! It looks terrible.
I also thought the polish was waaaay too transparent. I asked the manicurist to apply a THIRD coat and you can still see the calcium deposits on my nail underneath.