Brilliant communication from the outset, everything explained via email with easy online payment of deposit. I loved the extra touch of the pre delivery of a lab coat and badge for the birthday boy, along with three balloons for the door to help guests (and boffin!) find the right house for the party. I appreciated being send the contact details and name of our boffin beforehand, so that I knew exactly who would be entertaining my son and his friends. Boffin John arrived precisely 45 minutes before show time and set up quickly. He was super friendly and chatty with me, the birthday boy and his little brother, putting everyone at ease while getting the children excited for the party. The show itself was fantastic; John was well rehearsed, funny and very good at dealing with some of our more over-excited guests. Even the grown ups were thoroughly entertained and many sent messages after the party to say how much fun they and their children had. John cleaned everything up and packed everything away quickly, only overran with his show a little because everyone was having so much fun! I'd highly recommend these performers, if you have a party for a child/children who love science experiments, don't hesitate to book them!