I did my PPL with them in 2000, but it was a JAR PPL. The reason they stopped doing this was because the CAA used to charge in excess of £5000 pa for "inspections" and business class travel to come and see them.
So What they can offer is an FAA PPL, with the required ground exams completed before the strudent comes over, via some arrangement with somewhere in the UK I believe and then when the student has the FAA PPL their onsite examiner can instantly carry out a conversion to JAA PPL if required.
I have no interest in them other than I was a former student. things have changed a bit since then, so I can neither recommend or criticise them. They provide a service which is cheaper than many other UK FTOs, and the advantage is that you can end up with two totally seperate PPLs - FAA and JAA...