Well I received my nice new fancy meter (free trial) yesterday and was very impressed with the look and style. Was also looking forward to being able to test without the messing around with strips. It was going to be so much more simpler and modern.........but it didn't take long for my opinion to change! I set it up and did the first test which was good. However, when I went to test later I kept getting "cassette defective" error message. And every attempt I made "used" another test. I took cassette out and re inserted it and I also tried turning the meter off and back on but to no avail. And each time the number of tests available was decreasing. I started off with 50 available tests and was soon at 40, having only actually completed a test once. I left it alone for a while and tried again every so often until eventually it did work again and I managed to complete 3 or 4 more tests before all the problems started again. Not impressed with it at all and so glad I didn't actually pay for it! Back to using my sd codefree meter now.