I'm getting those bindings this year. Ive ridden flow for a long time now and I love them. I rode old FS bindings so they don't even really compare to the newer model. But I will definitely be riding them this year.
I haven't heard many good things about Flow. I have especially heard that they aren't a park binding. One issue is taking your foot in and out, they rip the sole/heel of your boot. If you're a park rider, I would go for something different.