I have the boost/trans/egt gauge and I'm very happy with it. It is very easy to read & updates very quickly. Plus, my truck is very uncluttered with just one "gauge". I wish they made a gauge that I could monitor oil pressure & fuel pressure with at the same time, since I haven't seen a gauge like that on their site, I'm planning on buying their oil pressure gauge, along with a second sending unit, then running the two signals through a switch to the one gauge.
Ben