Best Vertical Mouse I've used, great for wrist pains!
I work on a computer more than 8 hours a day, and suffer from wrist pains, etc.; it was getting to the point where I experienced the pain daily and couldn't continue, and a friend told me to try using a vertical mouse. -- I noticed when I moved my hand on a vertical mouse, I didn't get the same wrist pains, so I began ordering a bunch of vertical mice from the internet to see which one was best.
The Evoluent one was the most expensive (at about $75 at the time), so I figured it was going to be the end-all/be-all; but it had a 30-day wait for shipping, so I ordered a few other brands to try while I waited for it; one from Anker, and this one from Lugulake. I more or less just ordered this one as a stop gap, because it was so cheap and had such quick shipping -- My thought was it would be able to keep me up and running while I waited for the others. -- And I've tried some other brands since then.
But here's the thing -- of all the vertical mice I've tried? -- This one has been the best. -- Like not by a hair, but the best BY FAR. -- The other mice I bought collect dust in a drawer, and pretty much ended up being a waste of money. -- This one ended up being my go-to recommendation for anyone with wrist pains, it's incredibly comfortable and it's damn cheap to boot. I've ordered several of these, one for each computer I work on, and a wireless one for my travel laptop. (It looks like you can't buy the wireless one anymore, but it works pretty well too; my only issue with it is that you have to click once to "wake it up" if you wait too long, otherwise, it's great too.)
[I want to be clear, this won't magically reverse any damage you've done to your wrists, etc. -- but when you use it, your wrist is in a less stressed position, so it won't trigger those same pains. -- If you have constant dull pains (even when not using a mouse, etc.), it might get better over time when you quit agitating it (i.e. by switching to this mouse), but it's not a replacement for seeing a doctor / getting treatment, etc.]
Anyway, full disclosure: the only reason I'm back here right now, is because I've had this one so long (a couple of years now) on my home PC, that the mouse wheel has started to fail on me, and I need to order a replacement -- don't get me wrong, the product is decent quality -- but just think about it this way -- when was the last time you had a mouse wear out, and then went out and sought the exact same model from the exact same manufacturer to replace it? -- Right? -- This mouse is that good, you won't want to ever get rid of it, you'll keep it, and you'll use it, and you'll drive it into the ground, and then you'll want another one, because no other mouse will do!
On a side note: I'm planning on taking my broken one apart to trying to fix it (might even take it to a local hackerspace and see if the geeks there can help me), but not until I've secured a replacement (in case something goes wrong, I don't want to not have a good mouse for this PC! -- even with the scroll wheel broken, I'd rather have this mouse than one of the other vertical mice I wasted money on).