I have been a huge fan of the SS Contigo mugs for years and this one doesn't disappoint EXCEPT that I absolutely DO NOT LIKE the straw design.  The original Autospout that has a screw-on straw made MUCH more sense than this ridiculous "2.0" design.  No idea what their engineers were thinking but this is NOT an improvement.  This is the only reason I can't give it 5 stars - other than that, this is amazing at keeping my ice water, COLD.  I've seen it hang onto ice for 48 hours before and was shocked when I opened the lid and saw cubes of ice still present.