Couldn't agree more, I have 5 authentic KFL+ and have yet to try anything as satisfying...I have no desire to fill a room with vapor,the draw and flavor are perfect with exceptional reliability and I love the ability to customize them in so many different ways.
When the KF4 was announced I got pretty excited to see what they had done, needless to say I was dissapointed...I set my limit at $100 for an attie and 20 parts or less.
Other than the fact the K4 is darn sexy looking, so many comments I've read indicate in a blindfold test, one would be hard pressed to tell any difference between a KFL+ and a K4. This gives a significant advantage to the utter simplicity and rock solid performance of the KFL+ over the K4 at half the price.