I was one that a regular manicure was chipped by day 2! Ive been doing the shellac manicure for almost 2 years. I always have it on. Mine last about 10 days, not because it chips, but because my nails grow really fast.
I've worn it through vacations, beach, pools, everyday, and its amazeballs. I've done shellac and OPI. I prefer Shellac but use OPI when the shellac colors won't cut it. Like everything, its all in the application. Too many salons are doing it and not doing it right. If its chipping or peeling before 10 days, its not on right. Some techs just lay it on too thick.
A couple of things, if a nail salon is using a drill, run fast! They aren't trained properly and aren't doing it right. The correct way will have your nails wrapped, with an acetone-soaked cotton ball and aluminum foil or with special shellac made "nail booties" (as I call them). You let them sit for about 10 minutes and then the polish should get scraped off with an orange stick.
The only thing I recommend is to apply cuticle oil to your cuticles every night. This keeps them conditioned and helps not dry out your nail.
I love shellac and do not mind the cost as one costs basically the same as 2 regular and wears much better. My nails have never been stronger and never looked better.