This is by far the most unique feeling cube I've ever used. Others will say it within their reviews, so I'll just hit on it again: this is probably the smoothest cube I've ever used with insane control. Typically you sacrifice one for the other, but not here. The smoothness is on par with a very broken-in cube, except it's like that right out of the box.
I'll assume anyone that reads this isn't really looking for a 3x3 puzzle, but instead is really into speedcubes. I'll also assume that you (the reader) are familiar with typical cube breakdowns and action. With that said, the spring system is absolute heaven. The GANs 356s V2 is a monster if you're breaking it all down and rebuilding... I don't think I've ever been more mad at little plastic nuts in my life as I've been when the V2 explodes right as you think you have the first few nuts on. The AIR has the build in spring/nut/washer... and better yet the nuts thread onto the core BEFORE it applies tension onto the pieces. Essentially, this system allows for the easiest and most stress free tear downs and builds that I've ever experienced. Not even including the lack of spring noise during solves.
I've touched over "what makes it unique," but how about play? Finger tricks are effortless, and it flings around a M2' with the flick of my ring finger. The weirdest part is how stable it is... it almost seems as linear as a non-speedcube, but still pulls off great feeling corner cuts. Lockups are rare for me, but I don't push through sloppy technique, and could see how it would be problematic for anyone used to a sloppy loose cube (though, I can't chalk this up as a bad thing for build sake).
After break-in, I totally cleaned everything with alcohol, and applied a few drops of Lubix. Just a word of advice, this took half as much lube as I would typically apply... perhaps due to the lack of grooves. I had to remove half of the lube I applied, but afterwards it was love.
So there you have it. My new main. I'm using the clear springs right now, and find them to be a great "all arounder", while the orange and red were just a bit too strong, and the yellows were simply too loose.
-Easiest rebuilding with the GANs spring system
-Has less deformation than even most non-speedcubes
-Very fun to just pickup and solve
-Included springs could be a bit more...different
-Sounds silly, but I wish it had more weight
-Center pieces are much harder to remove than typical GANs
Additionally, for the Gans 356 Air, Gans has created a patented, color-coded spring elasticity system called the GES (Gans Elasticity System). Please refer to the picture diagrams for more details. Master Version: This is the Master version of the Gans 356 Air. The Master version features the Gans half bright sticker set pre-applied to the cube. It also comes with the Metal Adjusting Tool and a set of Red (S6), Orange (S7), and Yellow (S9) GES Components.