Lots of folks have their opinions, and whatever works for you is the best. There ain't no system out there that you don't have to fiddle with.
When it comes to atomizers, simply browse through these forums. You can't begin to discover all the ways people have tried to clean them, make them hit better or worse, raise the voltage, lower the voltage, low resistance, high resistance, on and on and on.
Then you have to feed them. Dripping with leaking bottles, cartridges with condoms and filler and refilling and replacing and carrying them, cartomizers with built in filler that burns, maybe more than one coil, and as you can see it goes on and on.
I too use the fluxomizers/clearomizers/CE2's/Visions and they are my preferred system. Sure, they require fiddling and modding, but what system doesn't? They satisfy me with their better flavor, their ability to hold a decent amount of liquid, and they can be easily cleaned (and modded). Yeah, it's different than a standard atomizer, but not rocket science; it actually is super easy to play with them. Yes, they are fragile and can be pulled apart, dumping liquid. If you see a puddle, I will bet somehow it was roughly or improperly handled. I have never had a puddle. An occasional gurgle or cleanup of condensation, but that's it. If you try or use these, treat them gently. Modify and use an ego cone if you can and it really helps.
Overvoltage is not good; too hot and they taste bad very fast. Lower the voltage to it and it recovers nicely. Thick juices can limit how often you can take a hit; if they are a problem, thin them just a little with water or alcohol. Watch the videos here on the forum about them, especially the ones at Gotvapes about modding; it's easy to do and works very nicely. Don't worry about syringes too much. Once these are modded with just the top seal, it is very easy to simply pull the seal and drip your liquid down the side when it's time for a refill; syringes not needed.
Tip: Get yourself one of those sets of dental tools at the drugstore. Grind or sand the sharp points down so that they won't penetrate the seals easily. They make great hooked tools for reaching down in and pulling seals, fluffing wicks, etc.