I do not have many complaints about kill switch. It was a fantastic experience overall, with the biggest highlights being the focus and mood elevation. However, I do not believe this pre-workout is anywhere near the level of the legends that are excelsior and dark energy, so any of those claims are all for hype. That being said, the best comparison I could make for kill switch is that it is similar to Wildfire by SoCal Supplements, as both of these pwo's were great when it came to mood elevation. I also appreciate that it is 30 servings, and since you are able to find this product for around $50 at different stores, that is very solid value for money. The pumps were nothing special, but lets be honest, if you are taking a crazy a** stim junkie pre workout like this, you probably shouldn't be expecting crazy pumps (unless it's apollon nutrition). Lastly, I'll talk about the least important part, the flavor. I had the sour candy blood bath flavor, and it was solid; no complaints from me.