I’ve had the O2 Broadband (ADSL2+ LLU) installed for a year now and during that time it has performed flawlessly apart from the previously documented reboots which are tolerable.

Credit due to the team at O2Br0ad64nd for changing the router passwords from the published default. Without telling the customers. After not being unable to access mine to look at the stats page, I resorted to a Google and found the details in a forum post at Thinkbroadband.
This meant I had to go to the trouble of locating the router and physically turning it upside down. Sure enough the details were there for me to see:
DSL Connection
Link Information
Uptime: 8 days, 2:49:19
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 1,265 / 7,668
Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
Output Power (Up/Down) [dBm]: 12.0 / 19.0
Line Attenuation (Up/Down) [dB]: 24.5 / 44.0
SN Margin (Up/Down) [dB]: 6.5 / 8.5
Vendor ID (Local/Remote): TMMB / BDCM
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 13 / 0
FEC Errors (Up/Down): 1,919 / 341,931
CRC Errors (Up/Down): 1,919 / 246
HEC Errors (Up/Down): 37,404 / 172
So looking good, also more stable as it’s been up for 8 days at present. Running a Skype video chat seems to be the ultimate stress test and will more than likely force a reboot!
If you are looking for detailed information on the O2 Broadband wireless box such as the manuals or how to configure it for OpenDNS then I have several useful links saved in my del.icio.us bookmarks.