Just as there are differences among 510 attys, so there are differences among people. For all kinds of reasons (including metabolism, physiology, hormone levels, taste buds, and life experience), different individuals can experience the very same event (e.g., inhaling an identical 510) quite differently.
I find the 510 to be consistent, flavorful and a very good vapor producer (although the vapor isn't terrible thick), with very little throat hit. For me, the penstyle* has great throat hit, good flavor, and (inconsistently*) very good vapor. I love them both ... in different ways: my 510 for pacifier vaping, my penstyle* for nicotine hit vaping.
* I use the term 'penstyle' because of the 801's inconsistency. I'm a bit frustrated with it and I am not that impressed with the BE112 attys I received a couple weeks ago. [NOTE: Many ECFers, notably Sun Vaporizer, are fierce proponents of the BE112 and seem to love them. I draw your attention to the tag line in my signature.] I've ordered an M201 and have my fingers crossed.