well I suspect the printbite issues were as much climate and cheap pla related as anything else.
Just run through a roll of black esun pla that came with the klic-n-print. Switched back to some flashforge red yesterday, printed a cooling nozzle for the ctc - wow, that stuck about twice as hard as the esun !

350 does look huge. But like i said, it's a 250mm square with added rounded corners. Doesn't cost any more, so why not :-)