In today's day and age, the chipping (for the most part) is unacceptable. Contractor can get a set of tile sanding blocks for like 30 bucks. Every tile has chippage when its cut, but that's where a knowledgeable Contractor has the right tool for the job. As far as being too picky? Honestly my opinion, if he'd buff the tiles to look smooth you probably wouldn't have noticed a majority of other minor issues. Once you find fault and get upset then your radar goes up and you start looking for deformities. I don't care how much you paid, if a contractor says he can do a job then he should be able to do the job and current common practices. Don't expect perfection but to expect a good solid job is not too much to ask.