+1 for Stark. I just bought a Stratus ESG from him; price was right and he was very responsive.
One potentially annoying detail about the Stratus is that its rack width is just a bit larger than the other radios in my stack (by a few hundredths of an inch compared to the Garmin unit it replaced). I had cleverly mounted my radios to fit as tightly as possible in the panel, which meant I had to do some filing to do in order make the Stratus fit. Not an issue for a new installation however, or if you allowed more clearance in the original installation.