Absolutely. I won't be upgrading and I'm already looking for alternatives, as long as crucial parts of my workflow (tree tabs, session manager) have no adequate replacement.
The ugly redesign is also a thorn in my side.
The ugly redesign is also a thorn in my side.
I've always been satisfied with the built in session management (restore last session on open) and don't have any feedback on the other.
As for the session manager, I need more features: saving and loading several sessions, etc.
Even now adjustments I used to be able to make in seconds by installing an alternative theme now take an hour of wrestling with the Classic Theme Restorer extension to restore and unbreak with each version upgrade.