@klintron I have! A Nokia 6300 4G and honestly I'd still use it if it wasn't for a couple issues.
1) Worst part was you had to type "No Subject" in EVERY group text response otherwise it would go to everyone individually. And T-9 made it even harder.
2) The camera sucked... bad.
3) Call quality was terrible.
4) Maps was very stripped down and basically unusable.
5) Few/cheap/no apps for important tasks.
I knew what I was losing but those few things made it impossible to switch.