ifly 740
I have flown behind the new 740 for only maybe four hours. Although physically, it looks like the 720, in reality it is a big step up. The faster processor really turned this unit around. The unit supports a wide variety of ADS-B units. I'm using mine with a Skyradar. The 720 I had originally would only find the Skyradar wifi occasionally. I will admit, I still have some issues with the 740 wifi connection, but it is an improvement. The touch screens functionality is also a vast improvement as is the menu displays. Everything is intuitive with information popping up immediately. Searching for airports is so much easier than the Garmin x96's approach.
The ifly talks to the TruTrak autopilot and the GRT EFIS with ease. Screen brightness is not an issue, in fact, even in broad daylight, I have mine turned down a notch. I'm not a huge fan of touch screens so I mounted mine in a locaction where I could steady my hand with my thumb on the side of the 740's case while touching the screen with my index finger - easy peasey. Other nice features include airport fuel price display options (now free), full ADSB weather including TAFs, METARs, Winds Aloft, etc. where available. Weather radar is now also portrayed on the sectional chart screen. The 740 includes an internal backup/flightplanning battery good for apprx 30 min use. The clarity of the charts on the ifly screen is so clear that I most often just leave my ipad at home. As I said, my only complaint is the ADSB wifi connection and that could be more the Skyradar, or 'me' than the ifly (although the ipad connects to the Skyradar every time!). Recycling usually solves the problem. Also, I haven't spoken with Adventure Pilot about this issue so maybe not fair to bag on this too much. Finally, I have had great success using the internal gps antenna, however that certainly could be a function of unit location, but its nice not to have another hockey puck to deal with.
Accept for the ADS-B wifi connection issue, I am very satisfied with the 740. Well worth my money, yours may differ.