I use and fold/split my TSR2 every time I cycle it to work, mostly in the summer months.
I decided to go for a new one as not much more expensive than second hand APBs and the latest ones tend to have all the wringles ironed out of them now. The early APBs where not 531 and quite heavy.
Shown split in my office with a light weight electric assist fitted.
Not a Brompton but with full suspension it is more comfortable to ride. Brompton shown again in my office also with a light weight electric assist fitted.
Regards
Jerry