I got a good feedback from my colleague who is using the earlier version of the same mouse, and suggested me to go for this latest version i.e. Evoluent Vertical Mouse D, and later I realized that Evoluent is not yet available in Indian market, but with Google search came to know about TANOTIS, which is helping customers like me who are looking for products outside India, and immediately placed the order, but I was little doubtful though I red good feedbacks about TANOTIS, I was having little doubt on this website... until I received the product. TANOTIS has very good process in place, they update status on each stage starting from taking the order, placing the abroad request and all other steps in delivery including customs clearance. It is my first time purchase of this kind. Thank you TANOTIS.
Regarding the product, I started using since past 10 days, until now it very good experience. Evoluent has very good interface to configure the mouse with lot of customization for the buttons. Not yet explored all the options to configure, but these configuration software is optional, and you can plug and play this mouse also as any regular wireless mouse. But with Evoluent software you can configure for your needs.
I was having muscle pain while using the regular mouse, but now that got reduced, I am feeling better now. However I understood on a regular surface this might be little tricky to use and get adjusted to it, this is first time I am using the vertical mouse, and may be to make it easy adopting and also to avoid possible wrist pain (which I think I need to confirm after some days), I believe, they have specially designed mouse pad, but I am not sure, how best it will be with that combination, as I have not ordered for that.
Hope this helps.