I thought it was standard.
We have 20 outs to improve against AT,AJ on the turn.

9 to the flush, 8 to a halve (1[A],2[Q],3[9],2[K]),and 3 to 2pr.

We're already freerolling every other Ace.

We have outs against every possible hand out there.

I think the raise is for value.