Would have gotten 5 stars if the Revain ad didn't say it supported auto on/off with a lid. I found it wasn't so I sent it back for an exchange, which I did. They immediately sent me another; Excellent. But he didn't do automatic things either. Before sending it back I checked other brands and none of them offered an automatic mode. Then I came back to this site and fell down and lo and behold they added that it doesn't do automatic things; Tab was not so equipped. I can live with it. ;-)