One thing to keep in mind, work place insurance is only good when you are a employee of that workplace, in this case Delta. It would be worth knowing whether Delta will provide this benefit in the event of a furlough or major medical event or extended period off.

Great info. If I remember correctly (I'll have to check some paperwork when I get back to work on Tuesday) I canceled the Delta policy because they started charging me for it ($?) when I went on MLOA (longterm). I already had private insurance and the military's SGLI. When I canceled it, they said it would automatically be put back in place once I returned from MLOA.