I'd say of all the cigalikes, people tend to like it, but mainly for its insane amount of nic salts which seem to be very quickly bioavailable, or in such high concentration, that people tend to find it "satisfying." It does have a weak battery and not the greatest draw, which is one reason I think they can get away with 50 mg/ml nic salts in their juices.
I don't know if there is a magic "something else/added" in there but their customers can tend to be quite loyal for the price.
I do think there are better (meaning more versatile with better battery life) setups out there, and posting on the pod systems area may net you more results. I have not used a pod system, so I'm really just going by what I read.
Juul: expensive, hardware not that great, and expensive. Some of the more open and versatile pod kits where you can use your own juices may be more versatile and satisfying, possibly.
Anna