I got Sigma Brain after a while, because I was so curious about what the 'spicy' aspect was like. It's very subtle, especially if you're used to spicy things, but if you don't expect it, it's even better! Oh uh, and fair warning- when you get this, don't immediately unscrew the tub to smell the power. I think you can guess how that went for me. As for taste, I think it's kind of like a ginger type of spicy that makes the lime taste even better. If you're a fan of Guac Gamer Fart and want to try something adventurous, I recommend this.
As always, it's much better with ice, and mixes well with other things, though don't expect a fantastic colour if you mix with an orange drink... Speaking of colour, this is one of the few GSupps powders I have that actually stains my tongue after drinking it. Kind of reminds me of Kool-aid in that sense, but of course, it's leagues above. Like, you're telling me this stuff doesn't even have sugar?? My ass! I've always had troubles with staying hydrated because I'm one of the idiots that can't stand water, so GamerSupps has been a life saver to me. I highly appreciate the fact that caffeine free versions exist too.
To conclude, goated flavour! Appealing colour! Nice!