Well just for fun I just this second registered. It took about three minutes to cut 'n paste EPIC, # shares, and current share price from my HYP spreadsheet into three blank columns and export it as a CSV, which I then successfully uploaded into divitrack without even looking at it!
Mind you if I want to get all the purchase/sale dates, quantities, and prices in there rather than just a snapshot as if I bought my whole portfolio just now in one go then it will take considerably more work than I am prepared to put in. (This might change if I end up using the site regularly. I'll put in future transactions and see if the benefits that brings look good enough to do the work.)
So although my answer is now "yes", apart from the ease of portfolio import, I have no views yet.
Chris