Product review (4 stars): FloodSafe: a potentially worthwhile feature
I have had FloodSafe hoses on both my washing machine and dishwasher for approximately 5 years. I have had no issues with leaks or having the FloodSafe valve shut off water flow under normal operation of both washer and dishwasher. Since I replace hoses as a precaution periodically (in my opinion a lifetime hose is probably more of a fantasy than reality) I decided to try testing the dishwasher hose. Now I admit that the test I performed does not represent a reconstruction of a burst hose scenario. Therefore, the reader must determine what value if any to place on my efforts. First, I attached the hose under my sink and placed the other end over a bucket. I opened the quarter turn shut off and the water flowed freely into the bucket. There was no restriction on the end of the hose. The next step was to cut off the end w/o the FloodSafe valve using an angle grinder, trying to get closer to a burst hose event. Back to the kitchen, again I attached the FloodSafe hose and opened the quater turn shut off. Again the water flowed freely. Needless to say there was no restriction on the flow of water.
The flaw with my test is that I really needed to cut off the end of the hose while it was attached to the shut off valve with shut off in the on position and the the other end being cut blocked off. However, working with electricity and water at the same time is not something I recommend to anyone. No doubt water would have been shooting everywhere. I believe FloodSafe may offer protection if there is a burst hose (which is very unlikely due to the stainless braid). However, if the leak starts off small and gets gradually larger, would FloodSafe actually prevent a flood? That is up to debate. I have my opinion, but I am not out to trash the reputation of a hose that worked w/o incident for approximately 5 years. But then again, I never had hose burst or even a small leak so I can't confirm that this hose is truly FloodSafe, a feature which sets it apart from ordinary hoses.
Addendum:
It is likely that the activation of the Floodsafe feature requires water pressure (ie. an open shut off valve) and flow interuption at the other end when the burst occurs. By this I mean a typical operating scenario where the shut off is on, allowing water to flow and the dishwasher is not being used. Therefore, to repeat my  experiment again correcting any flaw previously made I tried a different tact, one that more closely resembles a normal burst hose under typical operating conditions. Here is what I did. I connected the FloodSafe hose to a garden hose spigot using an adapter. I clamped the opposite end with a vise grip pliers. I put the water on fully. No water was released from the hose. I then opened the vise grips and water flowed freely. I expected FloodSafe to shut off the water. It did not. Perhaps this was due to the age of my hose.
My conclusion is that the FloodSafe dishwasher hose is well made and is unlikely to leak after years of service. As far as the FloodSafe feature goes, it may provide a sense of added protection.  Whether that sense of added protection is warranted has not been proven to my satisfaction.