I've had them come to my door too. The approach was very similar to JW's ---not at all like the Mormons. I ended up giving them a few dollars for a historical publication (albeit heavily slanted) about the Great Disappointment.
7th Day Adventists came to my house... it was weird
Just got this from their site:
Further, we believe that the biblical events recorded in Genesis 1-11, including the special creation of human beings, are historical and recent, that the seven days of creation were literal 24 hour days forming a literal week, and that the Flood was global in nature.
I was rather surprised. I figured they would be more like JWs in rejecting the young earth creationism.
There are still a lot of similarities. Both believe in living forever on earth. earthly resurrection. millienium of course. Big dif is trinity.