Instruct: Classify a review into positive or negative sentiment.
Query: Amazing!! Better than its predecessors!

I've been rocking a MX510 for years now. But it finally kicked the bucket and I went searching for a new gaming mouse. I saw this mouse for a good price (amazon had a nice mail rebate bringing it down to $24) and decided to trust that they hadn't tried to fix what wasn't broken. I am very impressed with the few things they did change. There are now 2 buttons that allow you to quickly change your dpi settings (which can all be custom set to the dpi of your choice). This is incredibly helpful for first person shooters where you want a lower dpi when sniping but a higher dpi for run and gunning. It is just as big as the old ones which fit my hands perfectly. It glides effortlessly over most surfaces and weighs enough to not feel like a hollow plastic piece of junk. This is an excellent mouse for the price range. Now if only they would look into incorporating the new blue laser in this series!