I have a Logitech, OLD....I got it for netmeetings when I moved to NC.....found it to be useful, but kinda slow....make sure your PC is powerful enough (and your connection) to refresh the pix frequently, otherwise, it's blocky and you'll wish you just e-mailed pictures to each other.
Can't comment on that one, but it was my experience that after the initial novelty wore off, I found it being used less and less, to the point that it now sits in a box (and has collected about 3 years of dust, now) with all the rest of the "I may have a need for this someday" parts.