For me S-builder is definitely better than PSAs To Go. Why? Someone will say its slower and need a lot of time to start working. I say: SFI is a long term business and PSAs from S-builder are more willing to work and progress than PSAs from PTG. But, if you are serious with your business here, I would say that you should try both of them. You never know where the new PL can be found. Also for me great part in everyone's career is their upline and their support.