Been hearing a lot of complains about Synapse 2.0. Some people call it mouse with a DRM or something.
Looks like Razer is a fan of Sony's formula of shooting yourself in the foot.
As of now, I am using a Razer Imperator (2011) with Synapse v1 and it is awesome. Has only local profiles. I do not really understand the use of cloud storage when the macros are stored in the mouse itself, same in case for G500 also I guess.