So glad I clicked on this thread! My machine just broke. I bought it from QVC a few years ago. I was looking for a replacement, but couldn't find anything like it....for under $300! So, I went on E-bay and purchased this Dermal Grade Microdermabrasion sponge for $15. The reviews were all glowing...but I was very skeptical. Well, I've done my 2nd treatment and it says to only use it for 90 seconds and do it 7-10 days apart and be careful as it is very effective......Well, today, I did it for the entire 90 seconds and my skin is really red in a few places...(have extremely sensitive skin). It works extremely well.....better than any machine I've owned. I can't believe it. I highly recommend them, but if you have sensitive skin (like me) you might need to work up to the full 90 second treatment. My skin will be fine...just red for a day or so. It feels like a baby's bottom and looks great afterwards though.
Just do a search under microdermabrasion on E-bay and it should come up.