I've found Harbor Freight Tools one of the most polarizing stores, with some industry techs swearing by their stuff, and others writing it off as total junk. I'll give my own experiences below.
For those unfamiliar, Harbor Freight is known for selling hand tools, power tools, and supplies at rock bottom prices, like $30 for a cordless drill set instead of $150, from no name manufacturers. ...Unless you consider "Chicago Electric" to be a brand name.
So, what's your experience? Do you use anything from Harbor Freight? Do they have hidden gems or just plain junk?
(Hat tip to John Scanlan for the discussion idea.)