For those who gave this bad ratings...
Out of the box, the camera seems to be jumpy and the image was horribly blurry. I was very disappointed in the quality at first.
But, upon further investigation, I noticed a focus adjustment on the side and I quickly had a crisp clear picture.
I also noticed that right after installing the software and updates, that the settings and options were not adjustable. I could not find a way of increasing the frame rate. Again frustrated I decided to restart the computer, just in case, and it actually fixed that problem too. (The program did not prompt a restart after install... ).
I then adjusted some settings and resolution and the jumpy video changed to much soother and larger video.
I felt much better with my purchase after this. I have always loved Logitech's products and I was beginning to worry with this one, but alas! I have yet to be dissappointed.