I was sent out to evaluate the Exec back in the 80s, and I was quite impressed. The CAA took the view that if it survived in the litigious atmosphere in the States, then they would look favourably on it, and I must say I agreed with them. Sadly, the project fizzled out, but I would buy one with my own money, which is probably more than I can say for a Robbie (OK, my tin hat is on!).
heard a couple of things about the engine which I heard they fixed.
phil