Mikes sent me the wrong part about a month ago but resolved it quickly......
I'm currently resolving a quality control issue with them about bad reg. They are supposed to credit me though.
Aside from the mishaps I think their customer service is OK. Could be worse.
Rule of thumb for Mikes:
They don't respond to emails from Friday until Monday.
Expect 2 days between responses, you really have to stay on top of them.
When they do respond, usually afternoon or after when it matters to you.
Don't ever ask for technical support........you are better off coming here.
And sometimes if you order Tuesday before 11 AM EST, they won't ship until Wednesday. Any other day before 11 AM EST and they ship same day.
I choose Mikes mostly because of part accessibility, price, and free shipping. Customer service is rarely needed, and when I do need it they are usually responsive, especially when I mention how much money I've spent with them. 650Central might compete if they actually built a decent website (which can be done for free, i.e. Magento) and dropped handling charge.