Super nice folks, pleasant waiting area, convenient hours (open Saturday mornings as well as during the week), and they'll do your DMV renewal right there, no wait, even if you are late.
No high pressure, though -- they pointed out I could just go to the DMV web site or wait in line at the DMV to pay without the $29 service charge, either way, once the smog was done. But I decided to splurge and not have to stress over getting it done before the DMV late fee goes up, over wasting a day at the DMV, or over getting another Fix it ticket for not displaying a current sticker while waiting for it to come in the mail.
It wasn't the cheapest it could have been, because I forgot to bring (or even mention) a $10 off coupon, and it's an older truck, and I had a $28 DMV late fee. But it's all taken care of now, so I'm happy.