make sure that they don't cut the power cable to the tuner module, they did this on mine which really p****d me off when I went to install the tuner, only to find that the cable was cut and had been run somewhere else, I wouldn't have minded so much if they'd then reconnected it back.... I didn't find out until I installed the tuner and found there to be a complete lack of power....delayed my tuner working by a day until I could get the crimps to make a small patch cable...

..other than that (which i'd never have noticed if I hadn't installed a tuner) they did a decent job....

Adrian