I have no complaints about the magnets, I know people had issues with them being weak and pushing the door off when squanking, it's possible they put stronger ones on.Mine came with the black doors too,and first,mine rattled pretty bad,it's weird but now after using it for close to a month,they have somehow settled in and sit nice and snug now.
Just got done running case analyzer on it and doing internal resistance w/the copper plug (the stock internal resistance was why I decided to put in thicker wires). I still use the therion squonker more, but as a backup, it's a pretty sweet deal. The one thing I would change about it would be that stock tube.