I am nearing the end of the 2 week mark throughout which I have been using this stack. I have been taking it like this:

2 Scoops-Xtend AM

2 Scoops-Xtend-Prior to workout
2 Scoops-Vasocharge-Prior to Workout

2 Scoops-Xtend-Before Bed

This has definitely been a great stack so far. I have already lost a little non lean mass weight while my strength has been steadily going up. The taste of both of these products is very good/Lemonade flavor is what I've been taking for both products. The Vasocharge gives a very clean pump and doesn't have any kind of crash whatsoever. I will continue to use this stack because it's definitely worth the money.