There's an Astondoa 39 in our Marina. Quite a rare beast, but looks to be well built. Large saloon, but only 1 head, which is a bit strange for this sort of boat. Sorry, no knowledge of its larger sister.
I had a client of myn more or less about eight years ago (nearly sold him an Azimut 55 back then), and he had a 2004 Astondoa 46 and was very happy with it after four five years of ownership.
In the end he traded for a biggest Astondoa 52 with midships cabin.
He use to cruise Croatia for a month in August in company of an Azimut 55 Evo and the 50 back then with the Astondoa 46, and he always felt proud how it behaved in rough seas and the trouble free boating it delivered.
Returning to Astondoa quality we have a 39 and a 40 here locally and what I have notice is that the light cream gel-coat seems to fade out really fast.