This is was the first time I tried a Nitric Oxide product so had no idea what to expect. I used USN's Anabolic Nitro as a sample pack so cannot comment on any long terms results.
First of all, I tried the "Power Berry" flavour which mixed really well with cold water. It tasted great too and was a pleasure to drink throughout the workout.
The main thing I was most impressed by whilst drinking USN's Anabolic Nitro was the fact that my arm became increasingly vascular as the workout progressed. By the end of the session, my arm veins were "popping through the shirt" which has never happened to me before. Also a great pump was experienced during that intense workout.
Overall, great experience with USN's Anabolic Nitro as an intra-workout.