Well, I am a long time user of the app, "App 2 SD". I had it on my DINC for a couple of years and on my Maxx for the last 21 days. A very good app.
Early on I used "App 2 SD" to move apps off my Maxx. I did have resulting issues and have since decided to leave the apps I install on the phone.
The issue I was having if I moved apps off the phone was a bit odd. After moving the apps I would find if I powered the phone off and then back on that many app icons would not load. Yes, the app would be on the screen with a generic / phone provided greenish color icon and you could click and run the program but again the app icon that should be displayed was missing in action. I found that this happen to many of the apps.. I would power down and then power up and see 15 or more icons missing in action. Yes, I reset the phone and tried app re-installs and such with no change in this odd behavior. Anyway, Maxx has plenty of space for apps so my apps stay on the phone..