I think the Brompton is a great folder and extremely compact, however I feel they missed a lot of features that they could have implemented.
The Brompton book recently released kinda implies that they don't want 'lots of features that could have been implemented'. As a Brompton owner (and someone who builds their own recumbent trikes) I looked long and hard at how to improve the suspension system of the Brompton. In the end I bought a Birdy.