Oh my,
Okay, here we go...
First off, they're so inconsistent with their resistances and it makes it a Pain to vape on anything that isn't variable voltage. I don't own a multimeter, so I cannot figure out what juice I should put in what, because I don't know which G4 is rated at what (they're not the same

) Second, the flavor? Where is it? It's a magic trick, you see, add one of your favorite complex flavors into a G4 cartomizer and *POOF* it diminishes and vanishes...magic!
Every single G4 I've used gave me absolutely no throat hit, none. The best and closest resemblence to any TH, if it can be called such, was with a mentholated cinnamon flavor. Even that was lacking. I won't increase my nic-strength for a cartomizer that changes my liquid's flavor just to try and get some TH, anything higher than 12mg generally gives me a headache (I like to chain vape when I am at home, and I am home quite frequently).
The mouthpiece is ribbed, I
could look the other way on that one, but, I don't like it. You have to force the mouthpiece into the shaft just to make sure that it doesn't come off. You can't use a drip tip. It leaks... out of the bottom when it connects to the pv. The draw is stiff.
I will say that it does produce pretty good vapor. Not as good as my Cisco or Ikenvape LR atty or even a Boge LR cartomizer, but, the vapor is definitely the best thing going for these things. I
love the idea of the G4 carto, but in my eyes, this version has failed utterly and completely.