I've had the good fortune to drive a few very nice paddle shift equipped cars - Ferrari 599GTB Fiorano, Jaguar XF-R and XK-R - and yes, you just pull the paddle when you reach your shift point. On those cars the shift was "right now" when you pulled the paddle, and on downshifts the computer automatically matched revs. I got to drive the two XK-R fairly hard on the street and just loved it. The XF-R I got to hammer for a couple of laps on a temporary road course - with Robert Guerrero (ex Formula 1 driver and Indy 500 Pole sitter) as my instructor!! - and it was sweeeet!!!

I've also driven the current Mazda Miata with the shift buttons on the steering wheel and, well, it was less than sweet. Punch the button and...... wait for it..... shift! Yawn. More of a novelty for an automatic trans in that car. Sorta like the Autostick feature on my former 2000 Dodge Stratus ES V6. I've not driven an SRT6 so I can't attest to how quick they shift, but I know they don't rev match on downshifts.