I'm just about one month into a flip phone. I still spend way too much time on my laptop when I'm home (and I'm home a lot) but I'm not missing my iPhone at all. When I am out, though, it's nice not having the option to look at the internet. Instead I pet my dog, talk to people, or just look around and think like I used to all those years ago.
I'm actually a bit worried that I am not getting some texts in general so need to investigate that. But that's a good question... so far I have gotten no spam texts but ya. Good question! I'll report back if I figure it out.