Button is 25/19 over 400 hands, seems pretty good. Effective stacks $110.

1. UTG limps, I raise CO to $5 witj [Ts], button calls while blinds and utg fold.
2. Flop [Js][4s], pot $12. I lead $9 and button calls.
3. Turn , pot $30. I check, button bets $21, and I CRAI for about $75 more.

This look ok? Though I haven't been paying close enough attention to him to know if and how often he floats, but I would imagine he does and it makes up a decent chunk of his range.