I agree with other reviews that the staff are disengaged - also we were told by a staff member on the ground floor that the closed room before the lift was “interactive” - everyone was pressing the walls, but…..it wasn’t interactive. I think some training is needed! However, despite that, we really enjoyed the experience…the best bit was popping out the top of the chimney…..whoaaaa it was a bit scary but thrilling at the same time. Fab views over London, superb!