Hi Scrye, I began reading this thread this a.m. ,actually out of some thing that was said along the way that drew me to it to begin with and can't even remember what that was,after reading all of the posts.
Having started this appox a month ago or more actually, I can give you feed back on what I have learned personally,for I really believe now I got some of the best advice,particularly after reading the very posts I ended up reading this morn.
okay,so, what is that advice? Well, to start out with I was told to keep my atty(atomizer)wick always wet,one or two drops on it and make sure it doesn't get dry,dont mess with it other than that.
I was also told to not mess with the cartridge(cart.),that I should just leave that alone,and fill as necessary.
One other thing she told me was to becareful of what I put into put into my carts,juices; there are many out there with a lot of stuff in them. She told me to use the purest I could find; she further explained she thought that was ecopure and to add some lorean(sp) flavoring to it. She told me to get a few samples of the Ecopure and see which one I liked best and use that as my base. Well, that bit of advice I didn't follow; I have been experimenting with a number of the juices out there,and have found the flavors that I am really enjoying the most,but now, some of those I dont' even have a list of the ingred. in them,and that isn't a good thing,although some of these companies are always sold out; does this make sense? Not to me,but ,I really think most people feel that the e-cigs are so much better than the real thing,that the ingred. in the juices don't seem to much matter to most,given what th ealternative to this kind of smoking(vaping) is,and I see their point to an extent.
Anyway, I know that many complain that about the cartridge or atty,but I am going on now over a month,and nothing has been replaced.
I bought the joye510 and love it!!
I hope this info. might help you as it did me...
Looking back now and reading all of these posts,I think it was the best advice I could have been given as a newbie.
I hope you enjoy your 901. I was also told that when you go to the mall ,to try some of the different ones out there,ie.401,510,and others to see what you really like,then purchase,but then again, who can wait?
I am so impressed that it is working and actually replacing a 25 yr. habit that that seems to be the only thing that matters right now. I watched a number of videos from oncologist,lung drs,and they are all impressed with the positive change in lungs and respiratory from e-cig vaping,so how can we go wrong???

Good luck with your new e-cig!!!