I do feel like it would have been better to have invested in a pair of the Zierer family towers like Liseberg, Phantasialand and Europa have. More capacity than the tower they’ve bought, respectable quality, and the option to run one tower and save money on very quiet days. They also feel far more suitable to Chessington’s market, in my opinion.
However, it’s clear they wanted to try and create a more sizeable attraction rather than just a filler. But the tower selected doesn’t feel suitable for the sort of numbers Chessington gets if it’s trying to be a more sizeable attraction. Towers are inherently low capacity though unless you are buying one in Intamin’s giant models. If Chessie had enough other supporting attractions then I’m sure this one would be fine, but as it stands it does feel like investing in a pair of them would have been better.