I didn't watch it, because I don;t like MM, his flutey voice irritates me so much, I can't take in what he is saying, so I have no idea how finny he is.
If it's the usual Parkinson-esque style of feeding cues to extract after-dinner stories, then no-one is missing anything.
If it is someone willing to ask some awkward questions, and genuinely know how to actually conduct a conversation - as opposed to a 'chat', then it will be worthwile, but even unseen, I am willing to bet the format is the former, rather than the latter.
AA Gill reviewed it in the Sunday Times, and compared it with MM's comedy personna, his 'I don't know what I'm doing ...' delivered in a 'I know what I'm doing ...' style, and reckoned that the chat show was all of the former, and none of the latter, which may have made for uncomfortable viewing.
The telvision manderins delight in the assumption that someone who is good at one thing will be entertaining viewing as they try to master another - but it's proving repetitive and tedious.