when it sucks:
* sending photos - rarely needed for me, but when I need it I "kinda really" need it, but you can probably work around it by buying better flip phone
* not seeing emojis in SMS
* when you need quick access to internet e.g for map, some info. I never needed it(I try to remember pathes/ways either via map or google maps or just ask people at the place), but I'm sometimes worried that I may need it