Where's the poll?
I'm hooked on Synchro-Rev. It's just so nifty and I'm surprised it wasn't put on a production car before 2009.
That said, I'm from the old school and I know how to heel-toe, so I poo-poo'ed the idea of Synchro-Rev when the 370Z was introduced. After two months in my Z, a ride in my Mazdaspeed3 showed me I was already getting a little rusty!