I used it for a short while and found the free versions framerate was worse than droidcam (paid) and occasionally it would give up the ghost all together and require a restart. droidcam also does this but less frequently.
It did handle switching between a device with low res camera and one with high which droidcam cannot do.
I wouldnt say either is significantly better than the other but i went back to droidcam
edit: droidcam also has a low framerate mode that prevents excessive battery use