Not as bad as the other reviews make it seem
Pros
Nice PTO accumulation rate, Good pay, Most of the supervisors genuinely want to see you succeed and aren't afraid to lend a hand to those who need it, great atmosphere, Great HR that tries to solve a problem instead of immediately firing and will look in complaints or worries in a very timely manner, very easy to move up and around in the company, Upper management and HR despite their faults will try their best to accommodate you and work with you on anything from behavior to performance, and the satisfaction of leaving work everyday knowing you're helping dozens of people everyday through your work. All in all a great company to work for despite its faults.
Cons
Bad work/Life balance, Pettiness between technicians and supervisors and each other, Favoritism (though it isn't as bad as the other reviews make it seem), Upper-management has no idea what goes on in the clean hall outside of second hand reports, and the pay to work ratio could use some work.