Product review (4 stars): Very nice concept could potentially save on HUGE repair bills - minor issues discussed in review
Installed fairly easily, but we nearly had a no-go with the installation.  We have some of the newer water valves that only rotate 90 from "off" to "on," not the old style faucet handles that twist several rotations between fully closed ("off") to fully open ("on").  The long tab on that valve stem would not clear the large brown sleeve around the connection at the water-supply end of the hose.  I had to twist that on a bit tighter than "hand tight" as the directions require, in order to get the gap between the four little tips that are designed to help your grip around the faucet end of that fitting, to line up just right in order to allow the faucet stem to rotate out between the little tips on that sleeve (see the close up view of the end of the hose fitting to see the four tips around the end).  One of those tips was perfectly aligned, when fully tightened, to keep the valve stem from rotating out the full 90 (full "on" water pressure).  Presumably that slightly greater than hand tightening did not hurt the connection, but just be aware that it's a potential obstruction due to that fitting being much larger in diameter at the four "tips" than a standard hose fitting.

Second, these hoses are only designed to last five years.  The instructions emphasize replacement in five years.  At $50 for a pair of hoses, that's a bit steep!  But the cost of a burst hose while you're away or at the other end of the house would be much higher than that with all the potential water damage.  I just question the price of the hoses, to be honest.  Having been in a situation where a hose burst under our dish washer, I'm particularly sensitive to this issue (fortunately we were home and avoided much more significant water damage, but not before figuring out where all the water was coming from and getting the shut off valve for the entire house turned off).  We've now got a water sensor as part of our home security system in case it happens while we're away, so we can at least call someone before catastrophic water damage occurs.  This is a nice fix - assuming it works as advertised.

Note that because of the construction of the shutoff valve end of the hoses (the end that connects at the supply lines from your home), this will cause your washer to sit a little further out from the wall than before, depending on the water supply line configuration at your wall.  We've got the room, but it just doesn't look as nice when the washer and dryer aren't lined up in front, or else the dryer has to also sit out further from the wall in order to line up with the washer.

Finally, note the 90 fitting at the washing machine (output) end of the hoses.  That causes the hose to also stick straight out further than "normal" hoses would if the fitting was in line with the rest of the hose.  If you've got the room, great.  And if your washer already will have to sit out further from the wall because of the other end of these hoses (the long valve assembly at the supply line end), then again, no problem.

While there are some negatives, the concept could save users HUGE repair bills if a washing machine hose burst while away from the house.  And along those lines, check with your security alarm company to see if they can supply you with a water sensor that can be mounted down at floor level behind your washer in case of a burst line (or other leak).  Having "been there, done that" before, we now have one, and feel better protected.  (We use Simplisafe, which uses non-wired sensors and permits text messaging of any problems at the house.  We've gotten text messages when power has gone off at home while we were away within seconds of the interruption, and would get a message about a water leak also within seconds if one happened.  This could allow a neighbor, relative, or friend to get into the house to shut off water - or even shut it off at the curb if they couldn't get in.  We have no connection with Simplisafe, other than being customers.  Presumably other alarm security companies have similar devices.)