I also would be interested in hearing from someone using ScanGauge. At about $125.00 it seems well worth the price for what it can do.
fuel usage data - m.p.g. instant m.p.g. fuel used etc
trip info - mileage, elapsed time
gauges - fuel, speed, volts, temp, air intake temp
scan tool - reads fault codes, resets check engine light
auto pilot - set destination and crawl into the bunk.
If you are using ScanGauge please let us know how you like it.
www.scangauge.com