Four years and a little over 200 hours later, my '21 4707 still has a jerky clutch, but I mitigate it by not using it very much and only when necessary. As a previous poster said, just use the reverser and the button on the shifter.
As far as the 3pt issue, my tractor initially had it pretty bad. The dealer sent a tech out a couple times and could not fix it, so they eventually loaded it up and took back to their shop for a week or so and when I got it back, it worked quite a bit better. Not perfect, but almost.
The hood still won't stay up when lifted, but I guess it's going to be that way as long as I own the tractor.
Having said all that, this is the best tractor I've ever owned or operated and I look forward to every time I hop in it.