There are a large number of PVs out there that can provide all day battery life.
Atomizers are still considered to be disposable items, but a few innovations should be mentioned - 1) Rebuildable attys: You can get a high performance atty these days and replace the coil whenever you want and clean, repair, or replace the mesh etc. -2) There are some new high performance attys around that can consume hundreds of ml of juice before failing. I personally prefer the hh.357 for longevity and performance, but there are others like the AVA and the i06 are available (I own both of those too... the i06 is great and my luck has been mixed with the AVA but many people report better experience than mine).
Reliability: It depends on the item, but generally speaking yes... and generally speaking no. Homework/reading is required, and you can't necessarily believe everything you read about these things. For the most part, making use of the forums and asking a lot of questions before any major purchase will be helpful. And, for the most part, reading
reviews and watching video reviews and then asking questions of people actually using the smaller items (like attys and cartos) is the only way to find out if they're worth buying.
As to "new tech". Well, there's something new almost daily. My advice is to avoid the newest things and let other people guinea pig them. -- All the rage for a while are items like whatever-clearomizer-just-came-out, carto tanks, and any PV that has variable voltage. I don't use any clearomizer or clearomizer-like device for several reasons but lots of people love them. I own a few tanks but use them rarely (again, many, many people love those too and I'm sure with good reason). And Variable Voltage PVs, I only have one bit of advice: Consider all of the features offered and don't focus just on the feature VV.
I hope that helps.
