They were pretty awesome. I saw The Fast & the Furious in theaters a couple of times and even bought the DVD [though I have since lost it].
I didn't really plan on seeing or liking 2 Fast 2 Furious, especially since everyone except Paul Walker was gone [and I liked Dominic and Leon from the first two; Jesse also but he was shot so nevermind]. But then I watched it anyway, and it was quite enjoyable. I found Tyrese's character to be a bit annoying and obnoxious at the beginning. For some reason, I like movies involving drug lords.
And rappers shouldn't act. Ja Rule was bad enough in the first one. Ludacris was an improvement in the second one. Jin as a mechanic amused me. And now Bow Wow's taking over for the third one; ew.