I was hunting around for a quality mouse, in the past always having gone with the MS or Logitech top of the line tech - which I can't complain about.
This time I wanted something with a configurable DPI setting (for use in Photoshop, rather than gaming), but didn't like the offerings from either of the above. I looked around other top brands (Razor Razer Mamba 2012 Elite Gaming Mouse
etc.), which come with a £100+- price tag, then found this item.
Never bought a Perixx before, so unsure what to expect for this price. I can happily say the build quality is great - the mouse is solid, glides smoothly over my Cyber Sniper mouse pad (the mouse has very large friction pads), the buttons are solid and click firmly and the scroll wheels ticks with just the right amount of friction. The 'extra' buttons are placed in an easily reachable position - I actually might end up using them.
The bundled software (I got mine from the website rather than the included CD) is very easy to setup and allows all the mouse buttons to be configured, as well as scroll speed etc.
I especially like the addition of the mouse weights, wired mouse can be quite light so this is an added benefit.
I've been so impressed I've started looking at their other items, especially the drawing tablets - if the build quality is anywhere near as good as this, it will be a replacement for when it's time to upgrade my Wacom...
In summary, the price tag of this mouse belies it's features and quality - I'm happy to spend money on quality items, but this mouse is punching so far above it's weight there really is no need to spend more.