I finally put some juice in mine.  I chose Gooey Butter Cake from altcig.com (yum! little shameless plug there!) and got out my syringe.  Mine came from WhiteStagvapor here in Ohio (another shameless plug - Thom rocks!)  and he included a needle tip bottle, but I decided to do at least the primer fill with an actual syringe because I figured it'd be harder to do the first insertion (and I was right). Thom included a page and a half of wonderful instructions and I followed them to the letter and had no problem.  I really wanted to pick it up and vape, but I was a good girl and let it sit for 40 mins (longer than I was told, but I wanted to be sure the wicks were saturated) then fired it up.  It was awesome!  Great flavor, amazing TH, clouds of vapor!  I decided to stick with my syringe for filling and it's worked well - although I'm sure I could use the bottle at this point.  The big warnings were these:  Don't drop it and watch for a breakdown of the glue at the bottom.  If the glue seal breaks, it can just be superglued and apparently that works wonders.  The company making them is working on a different glue, atm, to try to combat this issue.  
In a moment of slow motion panic I watched as my arm caught the charging cable and my Lea with a leo adapter and my Clearo hit the floor.  I freaked.  I started checking seals (apparently this is the biggest way the glue goes south).  It's fine - I got lucky because it only fell about 2 feet.  It did, however, make me much more aware of it and where I sit it down when I'm using my unit as a passthrough!  
IMHO, these are great, can't wait for a glue revision and I've had no wicking, burning or other taste issues and it's been about 4 days now.  I was hesitant to use the liquid I did, but it's held up well and the flavor is as good as dripping (I'm a major dripper).  
I give it 2 thumbs up! With maybe part of a thumb missing for the glue issue, lol!
daisy