When the bass comes in, it's largely long sustains, which isn't a great introduction (although it does have HO/POs in/out of them), but not around long.
From there, you enter a sort of (lower for HO/POs) G R Gr Gr~~~ rhythm, and it keeps moving down (up?) the fretboard. This would be pretty cool as an introduction rhythm to go into something else.
But It's the verse AND chorus rhythm, more or less. There's some small changes in the chorus (most notably you're moving back to the green from the blue instead of vice versa), but it's built around the exact same rhythm.
So you're playing this guy for a while. Eventually I guess you get to a breakdown. Where you place Gr Gr, pause, R Ryb, pause, B Yo. It's nice to have a change, but it's not particularly redeeming on its own.
Where this song digs itself out of the one/two star range is the scales. Very rarely in the early rhythms there's a small scale up or down the fretboard. After the guitar enters its solo, the bassist starts to get it, and throws a small scale at the end of each repetition. These are all HO/POs and very fun, it's really a shame they hid themselves until now, where most bassists unfamiliar with the song would be driven insane.
As such, it's probably not for everyone due to how monotonous the rhythm is overall, but I can say fans of Tom Petty who are bassists would probably dig the scales if nothing else.
1/5 - If you focus on this instrument, you should not buy this song.
2/5 - Fans of the song/band should be wary if they focus on this instrument.
3/5 - Alright on this instrument, buy it if you're a fan.
4/5 - Fans of this instrument could benefit from checking out this song.
5/5 - If you focus on this instrument, you should buy this song.