I do a dash pod and like it. I routed the wiring along the air conditioning ducts. I did drill a hole in the dash for the wiring. I figuer if worse comes to worse and I need to change it one of those places that repairs vynal could do a dash repair.
I like the pod because it is your visual field while looking down the road and you do not have to look at the A pilar seperately, then focus on the gauge you want. All youare looking for are "out of place" readings anyway.
For my wife I put a thin stripe of pinstripe tape on the limiting number (like EGT) and she does not go beyond that tape line. Works well, quick cross check.
If you wonder about the visual field, cut a cardboard cutout of a gauge pod, and tape it in place, then drive with it for a couple of weeks. Mine does not go beyond the hood line.
However, there is one thing I had to change. At night I had a reflection of the gauge faces off the windshield up toward the top of the windshield. I had to put a little hood on each gauge to block the light of the face of the gauge from reflecting on the windshield up high toward the top of the windshield.
Bob Weis