The mouse is good. Ergonomic and tracks well. Has good RGB if that's your thing.
However the Synapse software is awful. Needed to refresh multiple times to install it and you need an account just to tweak basic mouse settings.
The terms of service for a Synapse account give Razer access to a lot of data and permission to share it with companies such as Google for advertising i.e. it acts like spyware.
If I'd known this I'd have stuck with Logitech