Product review (5 stars): Great product - don't neglect the humidifier!
Product fits well and humidifier kicked up again after replacing a 4year old filter (super fun taking that piece apart with all the caked on minerals and filter disintegrating all over the place  - note to all: DO NOT forget to check and replace annually on the 600s). One suggestion - my filter was tagged yellow on the end which must face up. Yellow is very faint and doesn't contrast well against filter. Perhaps use a darker color to make it more obvious/identifiable.