Unimpressed. Took way longer to arrive than it should have. The screen was scratched up and I had to put in new batteries immediately. It took much longer to set up due to overly sensitive buttons and then it wouldn’t keep the settings I put in. Once I finally got those in I went through several ketone test strips before I could actually get a reading as it kept shutting off before the countdown from 9 to 1 could be completed. The strips are too expensive to waste like that. I don’t know if that reading is even correct. I emailed support and have yet to hear anything back. Total waste of almost $100. Very disappointing to say the least. I actually wonder if I didn’t get a previously used and returned product.