It's finally over. After SO MUCH time, money, and effort spent on finding a mouse that does these things:- Vertical or Ergonomic (including track balls)- Gaming grade sensor with high polling rate (this one can be set to 125, 250, 500 or 1000).- Comfortable for small hands but maybe longer fingers?You name it I've tried it. Logitech Lift, GameBall, iClever "horseshoe", deluxe Seeker, Kensington Expert, etc. etc. All manner and varieties of ergonomic mice and trackballs. And lo and behold it's the $30 Amazon mouse that finally does it, unbelievable.This mouse feels really similar to a Logitech Lift in shape, with a key difference being the height difference. The zelotes mouse is slightly taller than the Logitech Lift, so in optimal use it elevates my hand off the mouse pad *just* enough. With the Lift I would constantly have my hand resting on the mouse pad which results in discomfort after long sessions of work or gaming due to friction.The polling rate is the real deal and verified through DeviceTests. The buttons are nice and clicky, with the switches not requiring too much actuating force (looking at you GameBall). A lot of ergonomic and vertical mice are sporting silent click buttons, which are perfectly fine but feel a bit mushy to me. I prefer a nice snappy click of the mouse.The feel of the mouse material is matte plastic, so if that is not your jam definitely avoid this one. Also, the side buttons (assigned by default to back and forward) are a bit out of reach for my thumb. Forward is easy to hit, back not so much.I also find the joystick to be lackluster if you are attempting to use it for movement. It's small, reminds me of the joystick from a Nintendo 3DS maybe. HOWEVER, you can rebind the joystick to whatever keys, macros or clicks you want. It's so much better to do this and rebind the buttons to emergency cooldown assignments in your game. You could also be really cool and rebind the joystick to your favorite four-letter word, one direction for each letter...then when you need to spam that word you just circle the joystick! The possibilities are endless.Hey here's a possibility, if you can't reach back button just assign it to a direction on the joystick or do what I've done and make it the default joystick click.Another negative here is that it would also be nice if this mouse were wireless, but at the end of the day I just need to work and need to be pain free. Maybe next iteration.Can't believe this ended up winning, but it's the truth. Everyone is different as far as hand shapes, sizes, and biomechanics, but just know that for one person out there this mouse is absolutely perfect. It could be you too?Edit: Two months into using this mouse and we're still going. There are a couple of negative issues with the mouse that have popped up since purchase, but I have fixed with a couple of tweaks.1. The weight of the mouse is pretty heavy for first person shooters and low dpi gaming. What you'll want to do is peel back or remove the mouse skates completely, unscrew the little screws that are then revealed, and wedge open the bottom of the mouse from the top encasing. There is a metal weight near the palm side of the mouse that is glued into a plastic casing. With enough wiggling and prying this weight can be removed. Doing so will bring the mouse down to a usable 100g weight.2. With those stock mouse skates removed, put on any aftermarket mouse skates you prefer. The mouse skates the device comes with are really lackluster, and it makes a world of difference to replace them. This thing feels like a completely new mouse.So with modification this mouse only has a few drawbacks remaining:1. The forward button is unreachable for small hands.2. The joystick is more of a novelty than functional. (I just don't need it.)3. The software isn't the greatest, but allows for customizable poll rate, dpi, and lighting. It does the job and that's really all I personally need.