The Optical Image Stabilisation is excellent and removes the camera-shake that can cause the "rippling" effect seen on many of the budget cameras. Camera-shake is evident at high zoom, but still no rippling of the image.
The camera performs satisfactorily under domestic lighting. I tried it in a room illuminated by one 15 watt energy-saver bulb and it was OK - slightly dull colours, but OK.
Autofocus is quite fast and focus recovers quickly after zooming in/out. The Optical zoom is smooth and the zoomed image is clear.
There are "Auto" settings for everything, but also manual settings for focus, white balance, EV, aperture and shutter speed. The camera also does time-lapse and that's great fun to use.
The "Intelli-studio" software is OK; very similar to Windows Movie Maker and it can be conveniently downloaded from the camera.
The psuedo "HD playback" is a gimmick and doesn't seem to make any sense - it's a great camera and doesn't need to pretend to be HD when it isn't.
Definitely worth the money for the Optical Stabilisation, time-lapse and adequate performance in relatively low light.