I'm personally not a fan of businesses that only accept cash. -- The first thing that comes to mind...under-reporting income taxes, business receipts. No paper trail. Shady.
Just like hot dog vendors and donut shops that are cash-only...I'm willing to bet more than 90% of them don't report all of their sales to the IRS.
Great things usually don't match up to the hype, that much I also agree with you.
The best things in life, for you,...are usually spontaneous discoveries...that you would have otherwised missed or discounted because of some fancy label marketing and rating assumptions.