I have a bubble canopy and fly 2-3 hour legs about once per week. I have the IFly 740 recessed into my panel and I rely upon its gps to drive my autopilot. To be brief, it's awesome. I keep an iPad mini strapped to my leg and use different zoom levels on both. As noted, the readability of the 740 is far superior to that of the iPad. The iPad touch UI is much smoother than the 740. Based on my requirements for a panel mount unit with a WAAS enabled GPS the iPad was not an option.