Emotions are intrinsically good and bad

[Edwardo Piet]

But when you were talking about positive experience being an alternative to positive emotions, this implied to me that positive experience is always something that is there.  In other words, it implied to me that, as long as you have the mindset of enjoying your life, then you would be enjoying your life since your mindset would automatically create that positive experience for you. 

It doesn't imply that at all. Just as your analogies don't imply what you think it does. And just as your premise doesn't imply that time is more important than intensity either.

Positive experience doesn't merely require a positive mindset. Positive experiences are only positive when something positive is experienced. Having the mindset that something you are experiencing is positive when it's actually negative doesn't mean shit.