In general the twin turbo engines have reliable DPF systems. There are, however, parts around the system that can cause problems.
Two common(ish) causes to check are:
DPF Pressure sensors - if the pressure sensors are faulty then you'll get false reports of soot filter full (as the sensors determine a large pressure drop across the DPF that is actually not there).
Intake leak - Split intercoolers are a known issue, as are leaks from the boost piping. A leak here results in inaccurate air/fuel ratios (boost leaks, less air goes into cylinder than anticipated, too much fuel for the air present) and generation of significant excess soot, causing the DPF to clog up quickly.
You have an O2 sensor issue already logged, and that could be the cause - resolve that fault and clear the DPF again, then see where you're at. If you still have an issue, check the items above.
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