Well, firstly, I think you know, you need to be comfortable with the systems that you're putting up. By all means ask questions, look at possibly some reviews or some whatever. But at the end of the day, I think what you've got to take into consideration, is the product that you end up with. I mean, there's a lot of cheap products out there, but that doesn't necessarily mean that it'll give you an end result that you need. It's no good going just on price alone, because if you do, you could end up with a situation later on. But when you do look for maybe warranty issues or when you do look to have further extensions done or whatever, you might find that the people aren't around. After investigating the panels and also having a look at the panels that I had, I felt they offered a better panel, it produced more wattage per panel. It also offered a much better warranty, and I think it was a more reliable warranty. There's some question marks on some of the warranties that are out in the marketplace, yes.