c/calldown is meant for the flop obviously.
Why I think its better to c/c this one...
1.his range is UTG therefore pretty strong therefore I dont think you have equity edge vs hands you want to extract value from...
2.if you get called twice what is your river plan on blanks?... pretty hard decition imo
3.if you raise this one then I assume your c/c is fairly weak
4.this hand seems as a perfect bluffcatcher to me and also puts some FDs in your c/c range
On this turn(if you go for c/c flop) you imo have two mayor default options...either donk/calldown which may produce some lightish calldowns and deny his check back option or to just c/c...this way you will extract more from his bluffs that now have 0 equity(and he has quite a few of these still) and also loose less vs better hands which will most likely raise your donk. I rly dont like to c/r turn as default since I think you dont have the equity edge vs his turn betting range....with read that may change though.
As played....his flop call doesnt say anything...imo he does it with pretty much 100% of his hands(which is also good play)
Turn I prolly go for bet as default since I think you can get some weird light calldowns since your hand looks extremly bluffy. Also an option is to c/calldown since once you check you will induce a lot of bluffs at this point... also you equity vs hands that will legitimatly call you down from now on is not perfect.