It maybe a little late now. But it may have been a good idea to only open up the DGT boards against the bots first to make sure that the problems were all addressed first before opening it up for person-person play. I played my first game and started really weel and was very responsive. About 5 moves in the sync between the board and site was lost and couldn't get it back. I played the rest of the game directly on the site itself. I realise that this is in beta, bur from my first experience it is not even close yet. I will try again a week from now and see if it has improved.
This is me joining the forum, so that I can be active for a chance to be a Beta Tester. I have a very expensive DGT Board and been a Premium Member of Chess.com for a while now.