My newest bike has Di2. I swapped out my mechanical Revelator for a Prestige model just a few days before my crash.. I wanted something different in my 'stable'. I haven't ridden the new bike yet.. Hopefully soon.. I'm still out of commission from the crash.. but I did ride a di2 loaner bike a while back and the shifting was so crisp and precise, I fell in love. So I know why adoption is moving so quickly