I use clearomizers exclusively now and will never look back at a polyfilled carto again. I have Fluxomizer Supremes that are well over a month that are still working. They do tend to loose their resistance a little over time, so having a variable voltage
device will keep them going longer.
My favorite clearos, currently, are the Phoenix Bottom Coil (or the CE3 XL as they called by a few other vendors, Not to be confused with the smokymizers) and the E3 from DiscountVapers.
I've had my CE3 XLs for over 2 weeks and they keep going strong and are really easy to clean.
I just got the E3, so I won't be able to tell you how long they last, but they are rebuildable and you can purchase new innards for about $2.50 a piece. They look like the Stardusts, but you can unscrew the tube for cleaning and head replacement.
I would search the forum for the Phoenix Bottom Coil
thread and spend the time to read all the posts, there is a ton of good information on there.
Welcome to the wonderful world of Clearomizers.