My last CLI was on 4/4 which was an instant approval (no counter offer), so I decided to give this a try again and see what I'd get if I shot higher this time. Got a $7.5k increase from $25k to $32.5k!
Some data points:
My monthly spend on the card hasn't been anything crazy, ranging from $100-$250/mo since my last CLI in April. I do have gold preferred rewards status with them, so it seems BofA is quite generous when there's a good banking relationship.
Congratulations on your BofA Cash Rewards CLI!