Call me kooky, but I use Synapse 2.0 without a problem *shrug*
There's no practical issue with Synapse, maybe apart from excessive RAM usage, as I've said several times before the problem people are having is one of principle.
Razer taking away onboard memory on mice which should have it to be on par with competition, but instead they decide to go for a bloated driver that requires you to create an account, something you shouldn't have to do.
It's the same thing that people have been raging about for ages now in gaming; having to be online to play your singleplayer game.
I do have Synapse on my laptop and it works alright, but the old DA driver was better, I just haven't gotten around to fixing that since my laptop sees little use.