Quick and easy.
1. Pull up to Smog area (On the right).
2. Get out of your car and stand by.
3. Someone will do the smog thing.
4. They'll hand you the document with a PASS or FAIL.
5. Take the doc into the convenience store and pay.
6. Done.
It was $18 for my vehicle (flat rate). There's an increased rate for more complicated cases. But that is seriously it; very quick.
While I was having my smog check done, another gentleman with Clear Quality Glass was inspecting my windshield for cracks. There's been an inch-long crack for the last year that I've known about, but he found two other nicks as well. He offered to seal them at no cost (of course, that depended on your insurance coverage). It turns out I have the windshield repair coverage, so he began to repair them and called my insurance company. I had to speak with the representative briefly and the repair was done within the next few minutes. Great service.