Anybody have experience with County Sheriff's Auctions?

[Joshua Hilliard]

Does anyone have any experience with Foreclosure Auctions? I have an app on my phone that has a huge list of foreclosures up for auction in the area that I'm looking for. Are these a good way to find good deals or are these more like a good ol boys club and I'll just be wasting my time. It looks pretty amazing but I didn't want to get my hopes up if it's more smoke and mirrors. Thanks.