I got my 901 atties! Man, these lr atties are the freaking bomb! I am so sad though...When I first bought a 510 lr atty, it took me 3 weeks to get used to normal 510's again. I think I will never be able to quit using lr now. I love these atties so far, but I have to see about their longevity, so I might do a quick review after I see the life I get out of them. So far: VERY impressed. Good vapor, not really having a leaking problem so far, although I am using it on an eGo with the 510 cone, so it will prevent the leaks from coming out. I am over half an hour into this baby and there either was nearly no primer, or there was NO primer, because the flavor is just bursting (I think it is the same as a "broken in" 510 so far, so maybe they will get better/have no break in period?). If these babies last as long as my 510's, I found a new, cheaper alternative .