Product review (3 stars): Purchased 6/2014.
Purchased 6/2014.  Has never heated properly. Just had repairman--said must pre-heat 20 min. longer than controls says.
Would never buy this again. After calling customer service 3 times--did get a good repairman on third try. It is working properly once it has heated up, which is still longer than directions.  Do have to use steam clean in order to clean, and do have to remove shelves and manually clean.