Mechanical Mod Pro's...
No electronics to fail
Drop one in the mud... take it apart, hose it out, let dry & back to vaping.
More (by a long shot) reliable.
Will stand up much better to harsh conditions/use.
Most have a locking fire button making them pocket friendly.
They are cheaper (not counting rare hard to get ones).
Cons...
There are NO safety measures. It is a tube with a battery in it, nothing else!
The output voltage is only what is in the battery. As the battery voltage drops so does vapor production.
Both of these can be overcome with the use of a Kick or Stomp. (Which adds several safety measures. Over/under voltage & short circuit protection)
Recommendations...
Really depends on how you want to use it. ie. at home only, night out, work ect...
I carry a
K100 (Kicked) to work everyday and have never had a problem with it. Best $23.24 I've spent.
Fastech has them if you're willing to wait a couple weeks.
I just got a
Sigelei #19e, which after polishing it, is awesome.

That's on the low end/cheap.
On the higher end...
The
Precise ELA from Super T Manufacturing. (Made in the USA)
or maybe a hybrid?
Vapor Craze Noble 1 Hybrid
There are hundreds of mechs out there.
Basically I look at how easy it is to lock/unlock the fire button.
If I have to "look" to find it or know it's locked... I'll pass. (unless it's going to be a stay at home mod)
How well is it made. Does it have a gold hot spring, brass or copper connections.
Then when I find one I think might do, I'll watch SEVERAL reviews on it. One should never make a decision on one persons opinion.
This not only gives you a better idea of how it works & someones opinion of it. But, it gives you a better idea of the size & how it will fit your hand/pocket.
Anyway...
as others have said, if you're looking for billowing clouds of vapor....
Just learn how to build low ohm attys
SAFELY. There IS a learning curve, so PLEASE don't try to skip it!
