I really enjoyed this one. A good adaptation. I was able to piece together many murderous parts of the jigsaw, yet a few things still eluded me - which is the most satisfying way to watch Poirot, in my opinion!
A tiny, tiny quibble would be that Ariadne was barely used, aside from serving her purpose of connecting Poirot to the case.
But yes, more lesbians...it's almost a tradition now.