Preface:: I used this Audio Express location earlier in 2016. I wanted to give a few months of using my new audio equipment before actually reviewing immediately from installation.
I received 4 new Pioneer speakers for my 2009 Scion xD for Christmas 2015, purchased from Crutchfield. It was some time before I was able to set aside time and learn how to self-install them... trust me it took some time for someone who's not particularly hands-on for anything car-related. Around the same time I began looking into purchasing a sub-woofer to amplify the new sound. Since I was/am not terribly familiar with a lot of places in the Valley still, I went with Audio Express since their radio ads are EVERYWHERE.
I went to their website and asked for a quote based on my car & price range. Jake [the manager] got back with me fairly quickly via email with a lot of options. Based on our email conversation I decided to wait a few weeks to bring it in for the JBL sub option I picked, until their busy season died down [no problem for me, I wasn't in a rush]. I also asked them to check the tuning on the speakers I installed. Jake said that wouldn't be an issue, but never did he bring up an additional cost to do that. So the day of I drive up for my installation and Jake is not there, but another floor sales guy was who was quite helpful. He did mention it would be an additional cost to the sub installation for checking the speakers.. about $40 more. I never felt like they were trying to jip me of more money since I had the firm quote in hand and compared to the total cost of my purchase, $40 was worth it since I did the install myself. I only left my car there for a few hours before I got a call letting me know the work was done. Afterwards, one of the service techs went out with me to my car to show me how to use the sub and settings my Pioneer speakers needed to work properly.
Months later, and my sound system STILL is amazing. I love turning up the sub and making the seats shake! I think as long as Yelpers know what they want and are willing to pay the cost [since audio upgrades are not cheap], then there should be no issues with Audio Express.