I like laundry bags, these are nice quality it appears.  The zipper has a "lock" so it won't open in your washer.  It's nice to have more so you can put less in each back and use a couple.  That way your clothes get cleaner in my opinion.  The thing I don't like so much is that the biggest size is gigantic and you get 4 (of each size).  I don't really need 4 gigantic bags, the medium and small size are perfect although smaller is more needed than medium.  Another thing is that the mesh is really fine, that is nice for bras with hooks or other things with small buttons but it feels very stiff and inflexible which is also a draw back for getting your stuff clean.  Maybe they get softer with use.