Thought i'd update this with a couple of things i've noticed recently.
When it comes to the usual Flavour, Vapour Production and Throathit criteria - there isn't much difference between the Kayfun Lite and the Anyvape Davide - a bit but not a lot.
When talking in terms of Shape of the Vape - that's when the differences become apparent.
The Davide is a cooler vape (tho warmer than the Evod) and doesn't have the depth of 'Texture' and softness, that the Kayfun delivers - even with 70/30 PG/VG.
That Vape Density from the Kayfun, also caries with it, to me, extra elements of flavour, that get integrated into the Vaping Experience as a whole - making the Kayfun feel like a more complete and luxurious experience.
If thee haven't experienced this, then the Davide for instance, is one of the best mass produced misers around at the moment - and even if thee have an acceptable and cheap back-up