Source

I have been using this mouse for about 3 years and it has served my extremely well. Here is a breakdown of its ups and downs:

The Good

• Strong braided cable. The cable hasn’t warn or kinked on me yet and that has beaten many similar options which cost more.
• Ergonomic design: This has a really nice shape with a hefty palm swell and places to rest each finger comfortably.
• Hefty construction. This is not a cheap-o lightweight mouse. This has some real weight to it so you can utilize the momentum for fluid movement.

The Bad

• Sucky software. The Mionix software is really slow and poorly made. I do not like it at all, but I rarely need to use it.
• The price. This is $80 and I feel like that is a lot of money, but it is a good mouse so that choice is up
  to you.