Gaspari's Superpump 250

I do not work or have anything to do with any company dealing with supplement products....

2 months ago a co-worker gave me a scoop of Superpump 250 and I have been hooked ever since.  I am told that various companies have different versions of the their pre-workout stimulants.  Anyway, my workouts have gone from intense to crazy hard.  My bench alone went from 245 to 275. 

I use a creatine mono 5g mixed in with Muscle Max's Big Max gainer 50g protein and 90g carbs.  I go to bed bloated but next morning lean...

Question:  What pre and post workout stuff are you using and have you recieved a good response.