I can only say "and I hate to really say anything" but there is room for improvement, way to much pookie, and the electrical is not safe, float switch is probably ok is will shut off the condenser with minimal water in overflow pan.
These folks just do not take a lot of pride in their work
but we all live and learn, I am sorry that you paid good hard earned money to get something like this, but please don't stereo type all us, there are many companys out there that do take pride in their work and do a whole lot better than what you got.
This is why you should make an effort to maybe get some feedback from former customers and maybe even try and set up something with one former customer to go by and look at a job they company had done.
Bottom line in my opinion this job is not acceptable.