Yes of course I have already eaten caerulea fruits, at multiple times, and I have never experimented, tasted the same I have with 'Snow Queen'.
Some says P. caerulea 'Constance Elliot ' has better fruits compare to classic caerulea, slightly true.. but anyway, nothing to compare to my opinion with P. 'Snow Queen' ( here I have some difficulties to grow Passiflora.. and this one is a beast, I love it )