I upgraded to the S9 from an S6 and I'm pleased. I was worried about becoming overwhelmed with having to learn a new phone and needing to maximize the use of all the features, but to be honest, it wasn't overwhelming at all. There's some familiarity with some functions that I had with the S6 that are simply enhanced with the S9. I feel like there are more optional features or ways to adjust certain settings to your preference with the S9 than I had with the S6. I'm totally pleased with my purchase.