Bests & Worsts Reviews from Amazon

I don't give 1 stars lightly; this product merits it. To program the mouse buttons, I went to the razersupport webside for the 3.5g deathadder drivers. They only offer legacy drivers years old and one new bit of software called razer synapse 2.0. It is an 'online cloud device updater and profile storage' application. I get it grudgingly thinking I can uninstall it after it grabs the latest drivers. Sadly, this is not to be. Using the tool requires creating an account and validating it with an email address. So I use a honey pot email address and sign up. I run the synapse application, and log in to the server to get the drivers for the mouse. It does so without a hitch and now it is time to change the default mouse settings. I swapped the default left and right mouse buttons(since I'm used to ambidextrous/right handed configs, I don't need left handed config for individual buttons ... I just want to hold the mouse in my left hand is all). I don't know why they have the left and right mouse buttons swapped by default but that is a one time fix, so I thought. They have an annoying visual of the mouse that can be switched from a left handed edition to a right handed addition. This is unnecessary but would not be a big deal except that it complicates my future troubleshooting I will get to below. So I have finished tweaking things(and turning off the silly lights inside the mouse) and it feels great. I close the app thinking I'm done. Immediately the changes revert and I am fumbling to restart the app and see whats going on. I fight with the settings for a bit and then give up and look online. Turns out you must have the app running and the only thing you can do is turn it to 'offline' mode to stop the cloud sync; so much for getting rid of the bloat ware but at least it is only a one time thing right? Wrong. Every time you start your machine, you have to sign in. You can have it remember your credentials and sign you in automatically but you still must sign in. Even in offline mode, this is the case. Now, some people don't really care about these things. I do, so I am rating it based on my preferences. I find this product abysmal. If my reasons why don't matter to you, disregard my rating. However, if you find these connection requirements unacceptable like I do, I strongly recommend not buying this. It is a fine mouse, but the supporting software as bad as any design decision I've seen in software.