I had my 430 installed by J.A. Air in 2000. An initial problem with
the GPS a couple of months later resulted in a new unit, no charge. I
installed a Wx500 stormscope last year and they removed the old 24 volt
unit (and 12 volt converter) and again installed a new 12 volt unit at
no additional charge. When I had the JPI EDM fuel totalizer wired into
the 430 a couple of years ago, they installed new software in the 430,
again at no additional charge. So my support experience has been
excellent.

Having said that, their labor rates do appear to contain padding for a
few freebies. But having said THAT, all of the installations they've
done for me over the years have worked flawlessly.