I waited till the last minute to do my renewal. I went to Jiffy Smog in the AM and the tech got me in and out in less than 15 minutes. The price was great and in line with other Smog places.
The tech wasn't the friendliest guy but I was more concerned with the actual check. That was spot on and he took care of my car . They also do DMV renewals for $10 but I decided to take care of it online myself.
If needing a Smog check I would recommend them as that is all they do so getting in and out will be fast.