Running on Windows XP SP3.The first thing you are going to look for on a webcam and the image quality. Well, the image quality is extremely good, it films in HD without any problem and the low light capability is truly excellent. I can use nothing more than a string of fairy lights as illumination and you will still have a very usable picture for webchat type applications...obviously if you are filming video the better the lighting the better the end result. That is an extreme example, under almost all natural and artificial lighting conditions you will get a very clear image.The microphone is very clear and quiet, although it may pick up things like the computer fan as it's sensitive! It is tuned for voice recording, so if you are producing podcasts and you need full range audio maybe this isn't for you as it rolls off below 200hz. But for anything vocal, webchat etc, it's really designed with this in mind.Shooting 720p the camera is widescreen and it has a nice wide image angle, perfect for showing a little more of the room or perhaps if more than one person is chatting, families etc. However, if you zoom in you can produce a tighter image if you wish, although doing so will reduce the resolution you can shoot at.There are plenty of videos on YouTube showing off this webcam so take a look. The official Microsoft UK video was filmed in very good lighting as naturally they want to show it off to it's best abilities, and indeed in good lighting it really gives an excellent image, but it works very well in lower lighting with minimal visual noise even in quite dim conditions. I can't really compare it to any other cameras in the price range as I haven't used them but I'm extremely happy with my purchase.The only reason I haven't given it a 5 star rating is because the auto white balance can go from very blue looking in sunlight to slightly too warm under electric lighting and might need a little manual adjustment. Also the autofocus sometimes takes a little while to shift from a normal image to an item placed closer to the camera, esp under less than amazingly light. But the fact it can shift from a normal wide angle to a macro shot at all is great. I can hold up a page of text to the camera when using Skype (obviously the quality you get here is dependent on the speed of your net connection) and the other person can clearly read the text, so you get an idea of the crystal clear quality.The only other slight let down is the software is very basic and requires an internet connection to download. I would have liked something that had a little more control when it came to recording video clips.But overall this is a very good webcam for the price. The image quality is great, up to 720p HD for video and 5mp for still images. It copes well with a range of lighting conditions and the audio is crisp and clear.For a mid priced webcam you will get a significant improvement on most laptop webcams and lower priced models, my previous webcam cost around £15 and there is no comparison. If you regularly use Skype or some other form of webchat software I'm sure you will be really happy with the quality on offer at this pricepoint.