Pros
I honestly can't think of many. It's an extremely relaxed environment. "Nice" owners.
Cons
It's a scam. A huge part of the company is telemarketing. They change the name of the company every week, so that they can call the poor homeowners who have asked them to place them on the "do not call" list again and again. Yes, I'm saying that they LIE to the customer about the name of the company. Imagine what else they're lying about. So once the telemarketers swindle the customers into letting HMS come to the house to do a free water test, they send out a sales rep. The sales rep goes on and on for about an hour in the unsuspecting customers home. He'll explain how they all have cancer, because of their water quality is bad and he'll literally do magic tricks with water to convince them that they're all drinking and bathing in poison. Then the sale is made. So what's it like to work there? Well, not great. You constantly feel bad (or at least you should) for lying to these poor home owners. They actually tell you to target retirees and single women because they're easier to manipulate. There's also the fact that you can and will be laid off every couple weeks without prior notice whenever the owner feels that he isn't making enough profit. The owner drives a Bently to work everyday just to rub it in his employees faces.