This is so much more than a museum. It's an 'Experimental Experience'. That's the only way to describe such a one-off, one-to-one, journey through Victorian science.
I don't want to tell you too much, because that would ruin the surprise and the charm of this fun, brain-tickling two hours... which really doesn't seem like two hours.
When booking (and you have to book) take your host's advice: don't try and sneak in your 12 year old posing as a 16 year old, because too much will go over their sweet X-Box head. Their fidgeting will ruin your fascination. I decided not to take my 12 year old daugher (she's no slouch) and it was the right decision.
However, it was perfect for my son and I: he is a 16 year old A-level student (heavily biased towards the sciences) and I am a forty-something arts grad who likes shiny brass machines that go fizz and pop. At the end, both of us came out smiling, knowing a lot more than when we came in. We also realised that we had seen something utterly unique and very personal that won't last forever.
Tips: space is very much at a premium. If there are more than four in your group/family, then do the maths and make two bookings. To miss this electric moment in your life just because you're in a big party would be an even bigger mistake. Also, accept the offer of a stool if you're not up to standing for a while.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.