After several day's use of this router being online, I'm finding it to be very good indeed in terms of reliability and VDSL performance. The up/down rates are very similar to my Billion 8800NL and it has reduced my normal INP of 48 down to 44. It works well with DSLstats and shows error rates somewhat lower than the usual, and its BCM control is fully accessible via telnet.
I'm powering it directly from my mini 12v UPS rather than using the supplied power adapter, and it runs very cool indeed; no excess temperatures at all.
Though its GUI management interface provides access to a wealth of features, and which will be of interest to some folk, I haven't implemented much beyond basic VDSL setup, configuration save, DSLdiagnostics, and turning wi-fi off.
All in all I rate this very highly, and its value for money is excellent. It is doing so well for me that I'm in no rush whatsoever to return to my Billion 8800NL and will continue with it online for the the time being.