Their sites look fine. Nothing wrong with them at all. They look decent. As far as the basic site I do think someone could do as well for a lot less money.
I do think that some of the add on's they have may make it a decent choice. I do like the lot calculator. That was pretty cool. The plant guide looks like a nice plus. Those are things I don't see on many sites and will make yours stand out. I didn't look at the scheduler but that is probably nice as well.
It is pricy but will generate enough business for you to pay for itself many times over. Go for it. You won't regret it.