As I mentioned on other threads... I did have some difficulty with my installation due to the complexity involved. I lived in a condo building with a large service panel. I wanted to add a TOU meter. It was a pretty long run from the Meter to my garage. Even with all of these factors SPX only wanted $562. out of pocket. I could barely even buy a Voltec L2 for $562 with tax. (Much less have it installed.) I certainly could not have afforded a higher quality charger like a CT-500 without SPX involved.
So in my case... $562 for a complex installation that included the addition of a separate TOU meter seemed like a pretty good deal to me... And with an added $100-$200 off it would be an even better deal.
In the end... After some negotiation... I ended up paying nothing because SPX agreed to cover my out of pocket costs entirely. So as I said. My installation was free. SPX covered all of it. I really can't complain about the way SPX treated me.