It is a DX4000 from memory.
Admittedly the rear view isn't that great when on dual mode, but it is good enough show being hit from behind if it were to ever happen.
It records continuously on a loop, you can set the loop time up to 10 mins each segment. A 16GB car gets 30+ slots before it overrides them, and you can lock a recording. Also records for about 1 min after turning off.
No camera is going to give a driver's view unless you position in front of your face. It is wide angle enough to pick up what is going on though an no different to any other camera.
For me it is was about having some footage if someone were to hit me. I see far too many claims with differing stories from each party, making life hell because someone can't tell the truth.
I thought about the Blackvue, load of features etc, but personally i didn't want £200 of kit sat on my windscreen. I wouldn't leave my £100 sat nav on display, so it seemed mad to leave a £200 camera attached to the windscreen.
I still run the risk of having it stolen, but hopefully it is less likely and will certainly be cheaper to replace if it is.
EDIT: Sorry M1pui, misread the driver's view bit, i'll try and find some pics...