Product review (5 stars): Best i have used so far
Many similar products and manufactures out there, and I have used several (a matter of convince as to what was in stock at the time).  Fluidmaster hoses are better constructed a the connectors and utilize a better (harder) washer.  They a much less prone to damage and leaking.  They are also superior in being able to withstand reuse - Undoing and refighting the connector - when servicing / maintaining the end product.  No - I have no stock in fluidmaster, just a guy who has done a lot of handyman plumbing.