Did the 6 written exams in 3 weeks from getting the books through the post to sitting the last one (while also putting in long hours at work). The exams are not exactly rocket science or brain surgery level.
Did PPl in 14 days (13 flying, one lost due weather). A bit of a slog which doesn't leave you much time for anything else but doable if you put the effort in. Only thing really which can screw you up is weather.