EBS call them Interconnection Plugs -
http://www.bass.se/
You'll find them in the strings and accessories section
I've got a few and never had any issues with them.
Some people fear they can cause damage to the input/output jacks if the pedals are misaligned by too much, as they can possibly cause strain to one pedal, when you stomp down on the other pedal.
High quality patch cables and connectors will generally last longer than cheap ones, obviously.
However I'd partially agree that there are a lot of bogus claims made about many cables, and the improvements in tone they can provide.
like anything there is a point where the improvements are hard to quantify.
A case of diminishing returns.