Do the rooms have refrigerators ?

Fridge yes...microwave no.

I don't believe mine had one

Hilton Honor rooms do. You would of course build rewards.

Mine did not... you can request a room with one, most Hilton's have this option

My room did, we were on the 11th floor

Mine did not, and most doubletrees do not

Yes

Some do, not all.

Thank you everyone