I'm on Kesimpta now, and I like it. It's worked well for me.
I went off of the Tysabri due to issues with getting it paid for: while there was assistance for the medicine itself, there was not assistance for the administration of the medicine, so I moved to a DMT that I could self-administer. We tried Tecfidera first (this was...I want to say 5 or 6ish years ago), and then when the side effects of that proved to be a problem, we decided to start me on Kesimpta. I've been on the Kesimpta for years at this point, and it seems to be working well, though of course it's hard to tell with a DMT since no news is good news.