I'm wrapping up the first season now. It's worth watching but I don't find the characters to be very effective. I think Jax is terrible at trying to be some tough guy.
I guess it's not fair to compare it...but if you're looking at the crime HBO/FX style, SOA is pretty much a joke compared to The Shield, OZ, Sopranos, The Wire ect.
Sounds like the Second season is better, so I'll definetley watch it.