I happened to take delivery of my Garmin GTR225 about 2 weeks before Dynon announced their comm radio or I would have taken a serious look at it. My panel was already cut for the Garmin. Anyway I don't think you can go wrong with the Dynon or the GTR... as for price the GTR is a few hundred dollars more I paid $1595, it has a builtin intercom etc. So, once you add things up... The GTR and Dynon/Intercom combo are about the same price, and take up the same panel space.