Yes!
Desperate to play with real people again, but I've done masses of practice over the last year, I pick up a bass for 5-10 minutes or more at least a dozen times a day. I have put serious effort into learning stuff that I was convinced was beyond my abilities. I can learn new songs faster and play more fluently.
Have also learned a huge amount about how my playing style affects my sound and how changing pickup/playing position/digging in can be more profound than a bank of pedals.
Still can't play Portrait of Tracy or Teen Town, and my slap is still crap, but I can live with that...