I too really think there is subjectively a much nicer vape than just the longer battery life. It managed to get some attys I had from my 510 working great again but it produces a smoother fuller vape plus throat hit depending on your juice... And I LOVE personally the feel of the battery in my hand. I got the last 2 batteries in stock from Janty (at the time), it was my first order from there too... they had no chargers so I had to mod a universal adaptor from my 808d s which is working ok, but will get a proper one soon.
The black matte finish feels nice, the unit is solid and sturdy feeling without being too big... and yeah, with your same kit of juice and attys it simply delivers better. I like that it doesn't lite up at the end too. To be honest moving away from looking like analogs in my opinion is a good thing for numerous reasons such as the confusion it causes and spreads about what these things are, that they are like cigs so must be bad, etc... In any event, the button placement and light is nice. My fav. piece I own I think, and I have titans, minis, supers, 808s, an original screwdriver and also an xhaler I got on the same day... which is pretty cool too, but this little sweet guy is my new best friend.
BTW - I find you get better vapour production from VG mixes personally and prefer to use it these days, but that's too bad about the reaction to PG... as many of even the flavorings will be based with it even if you are mixing it up with VG there will usually always be some PG in there somehow.