Product review (5 stars): Cheap insurance
There's nothing not to like.  These hoses are more durable than rubber alone.  The fittings are as leakproof as fittings can be (make sure you use one and only one washer, and tighten enough without over-tightening).  Note that washing machine valves close abruptly and can put stress on any hose.  No hose is infallible but these are as tough as your'e going to find.  If your washing machine (and increasingly, your steam-enabled dryer) is anywhere that water can do damage to the floor (such as a kitchen or bathroom), it's probably worthwhile to pay a little extra to get the extra protection of a stainless braided reinforcement.  In fact even if your washer and dryer are in the basement on concrete, it's probably a good idea to mitigate the damage and expense incurred when a hose bursts.