I've said it before, ERA is the single best company that I've ever dealt with- regardless of the industry. They make a first class product, the people you deal with are extremely responsive, helpful and knowledgeable about their product. And, as other have said, they are also very flexible and will do as much or as little as you want them to do. Plain and simple, they make a first class product and have the customer service to match.
As for the nitpick, here goes (and I've mentioned this to Bob a few times and I don't think he's changed it yet!)- the nut that goes on the inside rear stud of the driver's side seat is a pain in the ass to get on because you need to squeeze your fingers between the bottom of the floor and the top of the frame rail to get the nut started. If you've taken your seats out, you know what I'm talking about. Other than that, I have no complaints at all.
If I were to do it again, the only thing I would do differently would be to order the ERA rear with the outboard brakes.