I’m afraid I don’t share the enthusiasm for this puzzle. My guess is that it was a chosen as an attempt to whittle down the all-corrects. It seems to be a vehicle for the setter’s virtuosity at grid construction, but offers little else of interest. One clue was interesting because of it’s thematic aptness, another one was interesting because of the misprint, but the overall experience was frustrating tedium from trying to cold-solve enough clues to see precisely what was going on. Even though It was obvious what the X factor was from the start, getting to the stage where a workable pattern emerged was long haul. At one point, having reached several grid impasses, I nearly gave up out of sheer boredom, but a stubborn refusal to be defeated, coupled with a desire not to drop further down the score card, kept me going to a conclusion that offers scant reward for all that hard work. If I had given up I wouldn't feel I'd missed much when I eventually saw the solution.
On top of other difficulties, the clue beginning “Slurp…” borders on the unfair in an unconventionally presented puzzle where every clue was particularly important and none had lengths indicated. Another clue could have passed as a normal clue, and it was some time after getting the answer that I realised a misprint was involved. A third has a container indicator that is dubious.
Next year I shall probably free myself from the shackles of the statistics, in which case I would stop solving a puzzle such as this long before the end and devote myself to something more satisfying.