I previously had a device and upgraded when my test strips were no longer available. I am not loving the ergonomics of the new meter. It is awkward to hold and insert the strips, I often have to turn the meter around backwards to get the angle correct. The eject button is also not placed as well as in the previous model. I also have to turn it upside down to get it to work. I am not pleased with the waste of plastic with the individually packaged ketone and glucose strips. If this was my first meter I would be very tempted to return it and try and breath meter. The only plus was that Keto-Mojo upgraded my meter for free since I was already a customer.