I use otherwise a Logitech G500 and find the DPI - Quick switch absolutely awesome, because in games like the aforementioned BF4 there's already an advantage that you can adapt without much back and forth of the game situation (I use personally when snipers another DPI as flying heli or tank driving).
The Grampus can be adjusted even in 4 stages as opposed to G500. Unfortunately, the DPI but here using software not adapt his personal inclinations, which would also be a little too much to ask for the small price.
The full marks from me and a very strong buy recommendation !!! Here's price / performance ratio is absolutely. Actually, that part shall be considered for the price even as a bargain!
