I like that it has all my favorite functions in 1 platform! It's easy to use with no learning curve at all for new users who are used only having phone calls or text messages from friends/family members while out camping etc., not being able to talk directly without paying extra money per minute through their cell provider when they're away from home base (home wifi). Nothing really - just make sure you have enough storage space available because this app will take up quite some room if your device doesn't already come loaded wtih more than what would normally fit into memory by default; otherwise everything works perfectly fine though so there shouldn’s any complaints here about functionality either way which makes me happy =).