said by Bruschi: said by John97:
They don't meet code in some areas, and for good reason.
They are illegal to use here in MA.
Ditto for Canada - peircing valves aren't code compliant here, either... Not to say they aren't used, with varying degrees of success; but they aren't approved.
OP - good find - I used something similar (only it was 3/8 all around) to install a dishwasher a couple year's ago... Worked well.