Product review (4 stars): Alignment matters, a lot!
I found these very stiff & if one isn't very careful when tightening the straight end, it causes the face of the right angle end not to be square with the faucet & water to spray everywhere no matter how much one tightens the right angle end.  Once I figured this out & rotated the straight end so the right angle end was square with the faucet, all was well.

They appear well made & I presume will last forever without bursting.

A sorta related note:  Long ago I was the president of an 84 unit condominium HOA.  The way the CC&Rs were written, the HOA provided insurance for all the units.  Most of our insurance claims were for flooding due to broken rubber washing machine hoses.  With age they get hard & brittle & eventually break.  Floods are no fun; stainless steel washer hoses may cost a little more, but they are worth every penny.