First HH Post... flopped set

[silly_monkey]

This is my first hand post. Sorry about the format, but I couldn't find a converter that worked with absolute.

UTG is a fish 85/0/0.2 after 40 hands. WTSD% of 50.
UTG+1 is slightly loose, but not out of line with aggression. 32/9/1.5. He continuation bets 90% of the time.

Absolute Poker $1/$2 (9 handed)

Hero is BB with 55.

*** Preflop ***
UTG calls. UTG+1 raises. Hero calls. UTG calls.

*** Flop ***
2[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/diamond.gif[/img]

Hero checks. UTG checks. UTG+1 bets. Hero calls. UTG calls.

*** Turn ***
6[img]/images/graemlins/club.gif[/img]
Hero checks, UTG checks, UTG+1 bets. Hero raises. UTG calls. UTG+1 calls.

*** River ***
4[img]/images/graemlins/club.gif[/img]
Hero checks. UTG bets. UTG+1 calls. Hero calls.

I have questions about all streets.

Preflop: I'm assuming this is an easy call here? UTG will call and payoff if I hit the set. I'm getting 5.5:1 when UTG calls. I'm assuming with implied odds thats enough to call here?

Flop: I played this way to setup a turn C/R. The other line Ithought about was to B/C and C/R turn. Thoughts?

Turn: Do I go ahead and check raise here with 4 to a straight on the board? I'm sure I have UTG+1 beat, but UTG scares me. Should I call and plan to C/C river?

River: Do I call here?