I like Test En. I'm not big on Andropen or Sust or whatever it is. The short esters arent in high enough doses to do much unless you shoot it eod. It always seemed like more of a gimmick to get people to buy it since it's a blend of 4 tests.
Most people will say test is test, just the ester that's different. Cyp & Enth are virtually the same although some will say Enth cause more water retention while others will say just the oppopsite.
I have never used Prop but the frequent/sometains painful injections people talk about keep me using longing acting blends. I know some claim good results using prop for site injections.