I have ran sust by itself several times an now am on it with deca also. It is a good cycle, BUT!!!!
You NEED an AI (like a-dex) at .5mg every other day.
I use a nolva/clomid combo with this cycle, but some say they can only use nolva.
I would start PCT one week after last pin.
You said beginner but does that mean very first cycle or just first sustanon cycle?
also how old are you?....how long have you been lifting?