Installed on my parents notebook so they could use it as a screen to show a reversing camera installed in the back of their van. Not the cheapest or simplest solution I admit but worked as a USB webcam with some free webcam software installed.
Installed ok on Windows 7 basic after following some guides and reading comments. Not the smallest thing to plug into a USB but no problem with an extender cable.
I haven't really used this as it's required function so am a bit wary of recommending it. It has lasted 3+ years of occasional use and all in all I have nothing against it in the way I have used it.
Well worth the money for under a tenner with delivery and works well with Roxio and probably most other consumer video editing software but for those who want to capture from an analogue source for little money this makes a decent choice.