Spinalis chairs

Hey there,

I’m not entirely sure if this topic has already come up here, but I figured I'd throw it out there.

So, here's the deal: I recently had spinal surgery on my lower back (dealing with an L5-S1 disc herniation). Since I'm standing at a whopping 6'3", I spend most of my workday hunched over a computer, which hasn't been great for my posture.

Has anyone here actually tried using a Spinalis chair? www.spinalis.hr?
I've heard mixed reviews—some folks swear by them, while others say they aren't all that special...

Thanks in advance for any insight!

I’ve got three buddies telling me this is some kind of genius investment...
I don't buy it. I'll stick to my kneeling chair; it actually does wonders for my lower back if you actually follow the damn instructions