Render software to be used with MOI

 From:  rarmada (RARMADA8)

I have been using MOI with a lot of success to make designs of plastic housewares. I need good render software to show designs to customers. It needs to be as realistic as possible. I have explored Maxwell (expensive), Thea, Octane and Arion (no demo?). I have found that many render systems don’t performed too well with small-medium size objects in an indoor illuminated environment. Also in many systems is hard to duplicate molded plastic like polypropylene. Any recomendation?