I had one that I used until it was really dying a couple years ago (growing blob of dead pixels in the middle of the screen, declining battery life), which I commented on during a visit home, to which my mom replied, "wait! i have the exact same phone in a drawer somewhere" ... so now i'm still using it, just, the one that she held onto for some reason.
The comments about dropped calls are true -- my phone has gotten progressively worse at being a phone in the last couple years. I wasn't sure whether it was hardware degradation or what, but I trust folks on this thread are more knowledgeable than I am and are correct that it's due to networks being phased out. To be honest I have no idea which 'G' my phone uses.
Pros: - battery lasts for most of a week between charges - is not distracting at all - I don't feel bad when I drop it - the alarm-clock feature works - most people are very kind about giving me directions if i get lost and ask them for help, after they hesitate and say "... can't you look it up on your phone?"
Cons: - not all text messages reach me - I have to manually delete texts as the phone only wants to store 30 texts at a time. - some phone conversations include redialing a few times - I don't have a camera in my pocket - I don't have a GPS in my pocket - My current employer had to buy me a cheap (no sim card / no linked google account) smartphone anyhow for 2FA apps! - distraction is more of a general habit -- i still waste plenty of my own time browsing the internet on a laptop.