I have not seen that actual access tower before, but are those legs, like the telescopic ladders you can buy that fit in your wallet?
Joking aside, mini-towers like this are definitely more acceptable now as way of working platforms and conform to H&S requirements. I am just wary of stability and not a fan of lightweight general clip build type setups.
It would be good to hear what @Iain-Pearson thinks of them if he has been using one?