I started out with a 3 PT hitch mounted Woods 7500 backhoe on my NH TC33D tractor. (I bought the backhoe used from an equipment rental place). I was not happy with how "robust" this method of mounting was, so I eventually had the Woods 4 point quick attach subframe added to my tractor. It's a great set-up. The first time I used it, it took me about 20 minutes to put it on (but I did discover that I could leave the 3 pt hitch arms on). With a little practice, I was able to mount it in 5 minutes. If I did it regularly, I could probably do much better, but these days I only use it a couple of times per year.
An additional bonus: the subframe made an excellent place to mount the belly pan I added for protection when working in the woods.