This was the first sleeve I tried with the free video they give you via QR code. It feels very nice and the stimulation is insane. The only problem is that unlike how they described it on the Vorze website, this thing actually broke during its FIRST use. The inside of my Cyclone SA, as I later discovered, was covered with slime because this sleeve has a massive weakpoint near the centre (thickness 1mm or less). It couldn't withstand the spinning, so when the video reached the place coded at max speed, it ruptured from that weak area.
Tl;dr basically spent $50 for a sleeve (shipping, taxes, etc.) just to get spin-kicked in the nuts. If you're gonna buy a sleeve, DON'T buy this one.