First of all, I just wanted to say that this company (the one that makes the mouse, notAmazon) has excellent customer service. I contacted them directly due to an issue I was having and I received an immediate, positive, helpful response and they followed up a few days later just to make sure everything was okay–so, keep that in mind for sure!
The mouse itself is great for me. I have small hands and was having some random elbow/wrist pain and tendonitis working at a full-time office job, so I wanted to get an ergonomic mouseI didn’t have much choice, however, because I use my mouse left-handed, and 99% of ergonomic mouse products are for right-handed folks. The fact that I can switch this from left- to right-handed is a boon as well because if my co-workers needed to use my computer for anything, I could switch the mouse for them so that they didn’t have to struggle with their left hands. I also feel that its the best ergonomic mouse for graphic designers as the upright shape of this mouse actually gives me more control over the cursor, so when I’m working on graphic design projects I can do touch ups or vector art without having to break out my tablet and pen for it. (I do, of course, use the tablet and pen for sketching, inking, and coloring, however.)
I am very pleased with this mouse, basically!