Tim Minchin is (as one should reasonably expect) a fantastic performer and I would thoroughly recommend for anyone to see this show, albeit be prepared that some of the material could cause offence to some people (mostly the devout religious). Personally, I'm all for freedom of speech and what Tim has to say on various matters is thought provoking and certainly very entertaining. Some of his musical material did come across as formulaic, ie. if you've seen the "So F**kin Rock" dvd then the interpretationsof those songs haven't changed. The newer material is along the same lines and I particularly thought the "Storm" monologue was impressively etched and beautifully/seemlessly delivered with an enviable pace and rhythm. The best part of the show though was the banter with the audience which for me brought the most laughs.
The only major negative for this show is targeted at the venue itself and particualrly the sound. Friends of mine live locally in Southampton and when I said we were going to the Guildhall show, I was warned about the sound which is apparently notoriously sketchy. These friends have seen numerous bands/shows there and only ever once had a good sound and this was when the volume was turned right down - the hall has a high ceiling and no dampening on the upper sections of the walls making everything echoey (particularly the top end) and at times it was difficult to actually hear what Tim was singing (particularly when there was a backing track). For the sake of few grand, the venue could easily install some thick long curtains or similar to sort this out. So, as a result, I left delighted to have seen Tim live but equally frustrated that I effectively missed a core portion of what was being sung/said due to poor sound.
In summary, I would see Tim again, but would avoid this venue.