If you are looking for flavor above all, m201 is the best I have come across, even over the dse901 or the 501. It is a harder pull, but that is a plus for me.
I will be trying some of the other big "pen style" attys for comparison, but they have a high hurdle to jump to best the m201 in flavor and reliability for me.
And I, for flavor, the coffee and red wine are good to me, but different attys, volts, and taste buds may get different results.