The sale went well, despite complications on the buyer's side which he shared with me with your system but the details of which I do not know. It took a week and several purchase alerts to get done. He had already bought me so I was calm, but for a newcomer, I would have lost my motivation.
I spend about 2, 3 hours a week, sometimes less, to manage my site and it is true that I sometimes advise artists to register there.
There are international contacts on Artmajeur and that counts and I particularly appreciate the fact of being put in direct contact with collectors.
My advice: receive the money before sending, and be clear on all points.
I'm critical, but you still do a good job.