Pros: company vehicle, gas card
Cons: management, health benefits
Emcor is a good company as a whole. I currently use their union tradesmen frequently at my current job.
Viox, however, I believe won't be around much longer due to their poor customer service and unqualified employees on all levels.
As some reviews have said, the health benefits were worthless. Now the 401k and stock purchase came from Emcor and those were great.
Promotions were based on who you knew instead of merit, which of course produced unqualified leaders.
They love to micro manage and question you on the GPS reports frequently. Even warming it up in the winter would prompt an idle alert.
Most of the meetings involved threatening language such as "You all know what an at will company is right?"
I eventually found another job and gave them a full two weeks notice. Instead of being cordial about it, two days later they sent two people from out of state to track down my company vehicle GPS and relieve me unexpectedly early.
It was all very childish, like I hurt their feelings.
I'm grateful to them for the employment during a bad recession but I think most can do better than Viox, especially if your a skilled tradesman.