Low light really taxes the HD1000... I find in lower light situations i get better results if i manually set the ISO, the auto iso tend to push too high too fast. Also, the auto white balance seems to act too fast as well... so i will manually set the white balance.
I also found that the stabilization is very depended on lighting... it works really well in bright environments, and almost completely fails when the lighting is low.
But i think as long as you know the shortcomings of the HD1000, its still a really great device considering the size.