We have all had the experience of.....

We all have had the experience of....


Both are correct.



Both positions are fine. I would say that the first is better because in speech we would likely say "we've" for "we have", and even if we say "we have" it is easier to say.

Students: Are you brave enough to let our tutors analyse your pronunciation?
 Cool Breeze's reply was promoted to an answer.
Thank you very much, both of you.