I remember walking thru Caesars and seeing Numb for the first time. I thought their drinks sounded pretty interesting. Actually, I've been wanting to try their drinks for quite some time.
I had their All Nighter which had some Red Bull inside. I got the 'medium' sized cup which was $16. I think part of the cost went towards the cup since it had a fancy holographic design. On to the drink, it wasn't amazing, but it wasn't bad either. But it did it's job though and kept me cool in the 90 degree heat and also gave me that extra oomph that I needed to keep going into the late hours.
This was actually my first foray into the Vegas slushy drinks so it wasn't too bad.