I know Dufour, since 1980 when they were very good, then...solid.
Now....well.....ther's better for same price....a lot of SIKAFLEX sealing, and sailing.....well...their sailing does not match their looks.....they look fast.....
We have all sorts of Dufours here, and sailed most of them, several times, mostly a 40' and a 36' right next to my boat.
Here's my neighbour a 36 classic....