decent shape and interesting button layout (lots of buttons for such a small mouse), but IIRC its sensor performance is subpar
some notable flaws:
-has prediction/angle snapping ie "helps" you draw straight lines whether you like it or not
-sensor position is not centered at bottom of the mouse despite being an ambidextrous shape
-tracking performance often yields jittery tracking on various cloth pads
basically instead of making a smaller ambidextrous mouse that could hang with the G400 they decided to cut corners to make the G300 a cheap POS targeted more at entry level users than those looking for an excellent ambidextrous finger grip oriented mouse