I am very satisfied with the whole experience. Buying was straightforward. My questions were answered promptly by the technical support and I received the product within a few days after I bought it. When I opened the package, it was a bit intimidating the quantity of manuals and all the explanations. It felt a bit too much. I decided to go straight to the youtube channel and with the videos, after 10 minutes, I was able to perform my first reading. A few parts were not so clear, for example, the right way to insert the needle, how to set up the clock, how to correctly take the blood sample, but after a few trials and errors, it worked well. Using the app was key to set up the clock and start using the device. Now the process is super simple and I've been taking measurements flawlessly. Thank you so much.