I've been touting my love for the CE2 for the past few days in different threads, so why should I stop now?
I use a 2.6-2.8 ohm XL on my eGo batt...I use it on both the 650mAh and 1000mAh eGo-T batt. I agree there's no comparison to dripping, but I try not to drip and drive. With that in mind, I've been looking for the perfect setup: I've gone from 510 cartos, to cartridges with polyfill (yuck), carts with PTB (great), eGo-T (will soon be great...WORK OUT SOMETHING FOR VG..SO I CAN USE MY TANK W/BOBA'S!), and the CE2. The CE2 is the closest I've found to dripping in terms of taste and TH.
There are some things you need to do to insure these things, namely:
1) Place an empty/new CE2 on the batt...remove both the mouthpiece and the inner seal (use a paper clip fashioned to a hook). Then carefully wiggle the plastic tube off of the atty.
2) Take a pair of tweezers and "fluff" the silica rope around the ceramic housing by pulling the threads a little loose. This will aid in wicking.
3) As for filling: if you use a syringe you're probably good to go; I don't, so what I do is drip my bottle down the side of the tube (did I mention putting the plastic tube back on yet? Well...do it

), checking the level as I drip. It works great!
4) If you wish, or, if you plan to put your PV down, I would replace the inner seal. Make sure you align the notches on the seal with the silica rope to insure proper wicking; this can be tough sometimes, but don't compromise...get it right.
CLEANING
Pretty simple really: once empty, just remove things same as above, detach from batt, and then place the plastic tube and inner seal in distilled water (I don't even boil it...right from the jug). Swish the atty in the water to clean the silica rope. You can then let the whole unit soak for a few minutes if you like.
Pat the individual parts dry using a paper towel, paying particular attention to the silica. Blow the atty out from either end (I blow from the ceramic side). Reassemble the CE2 (leave the inner seal until later if you plan to immediately refill). I then dry fire until I see the entire coil glow; I also gently scrape any dark spots with the paper clip.
Refill using procedure above.
Wash, rinse, repeat....it's really simple after doing it once.
Good luck!