They work great Geno, but if you're getting the in-cab controller/gauges get the Load Controller I. I got the Load Controller II and it's very slow to fill the bags up. The Load Controller I is supposed to fill at twice the speed.
Summit was great to deal with, I ordered online, didn't even have to talk to anybody, plus you can track the package on their website after it's sent out. They use good packing procedures so it's very unlikely to get damaged as well. I was impressed and would definitely use them again.