Had a look at some products. This one had a positive rating as unifier and was still favorable. Here I can only agree. The products is cheap and still good! Have until now about 15 bags used and during suction, a bag was only leaking. But may also have been due to myself that it is broken at the suction. Top! 1+! I can only recommend. Super value for money! And the product itself is very convenient. Space savings plus safely stowed.