mine is up and running (the uk version). I'm still in the dslam training period as changed providers, but had a weird thing overnight where the sync speed dropped from 71.5 to 67 and g.inp moved my SNR from 3db to 4db, Actual DS rate dropped from 69 to 63.5. may be because of the disconnect to change modems though so will keep you posted. I'm not having any MTU issues, but my entire connection is through a router configured VPN and the MTU is set smaller on all my LAN devices to accomodate this. I have MSS fixed at 1380. So far I'm not seeing any line errors where i was seeing them on the previous modem, but as they are stuck on 0 I have no idea if those figures are actually working! So far it seems good, and if the figures on error correction are correct, its far superior to the old modem (a netgear D7000 gen1 in modem mode - broadcom chip) but just hoping i get back down to 3db SNR to knock my speed back up.
on a side note - Has anyone else got a blank DSLAM CHIPSET VENDOR on the stats? mine just says DSLAM CHIPSET VENDOR : < ----- >