Yes sir, here I am.
The GI275 has been awesome. I wish I had a picture to post but I don't at the moment. I only have on in HSI/HSI map mode. It's primary and plays the role of HSI, moving map, VOR/LOC #1 indicator, NAV (GPS) indicator, and heading and GPSS steering for my Century II autopilot. I got talked into the install because the unit was released right when my plane happened to be scheduled to go in for an upgrade (was planning on a G5), and in retrospect, I'm really glad they put it in. I pretty much ended up with a whole new panel built around a GTN650xi, but the thing that really makes the whole thing sing is the GI275.
The HSI Map function is pretty much like having your GTN650 screen right in front of you. The entire course is right there - great for situational awareness. It will show your holds, procedure turn entries, traffic, terrain, and waypoints just like the 650 will. The HSI mode is probably pretty similar to the G5 mode, I would imagine. Not as good for overall situational awareness like the map, but great for focus, like on shooting an ILS. I like how it displays distance offset and distance to next waypoint, etc. Everything is very crisp and clear, easy to read. Compact, but not too cluttered.
For everyone that has ever said "don't invest in maintaining an old autopilot," they should see the GPSS tracks produced by the combo of the GI275 and an old Century II - what a HUGE upgrade in capability! Here's a snip from Flightware from the first RNAV approach I flew in GPSS mode, showing the intercept at the FAF, parallel entry procedure turn, and then final approach coarse. The tracks are perfect. This was with about a 30 knot wind from the SE, btw. Really amazing.
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