Great? Well, I'm not sure I agree with that. It was workmanlike and a reasonable instruction platform, but it was hideously expensive and had a horrible penchant for entering irrecoverable spins, and even with 200hp it struggled to outperform the Chipmunk it replaced. The
Siai Marchetti SF260 was the same price and a lot more capable but, although it was considered for the Air Staff Target that resulted in the Bulldog, it was Not Made Here and thus didn't get bought. Interestingly, a derivative of it is still in production.
I did once get a look at the sole Bullfinch, a retractable-gear development of the Bulldog, which might have been an interesting alternative, but it was never put into production.
However, as a relatively simple GA aeroplane, the Bulldog has a lot going for it.