I started this yesterday afternoon because of a comment on this week's Listener thread on Answerbank and have been battling with it ever since. I'm pleased that I got there in the end under my own steam but I enjoyed the endgame rather more than the journey.
The grid is awful. There are far too many short entries (65% of the grid consists of answers of five letters or fewer, including ten 3-letter words). Some entries have too may unchecked letters (eg 7, 13, 23).
Only two Listeners this year have been tougher this year for me, but at least the clues in the Listener puzzles are rigorous. I'd say at least half of these clues would be heavily edited had the puzzle been submitted to Listener editors. For example, the wordplay for 32a requires 'leaves' or 'has left' to describe the disappearance of W. Considering the toughness of the clue gimmick, some of the definitions are unreasonably indirect or vague, or just oddly worded. The puzzle needed far more scrupulous editing in my view.