The customer service at Keto-Mojo is fantastic. I have been using this meter for about 2 years so I have to order the test strips. If I have any issues, they work quickly to resolve them. I really like the ap that is on my phone where I download the readings and the emails where they include recipes. Currently, I am not using the ketone part of this monitor ... just doing the blood sugar readings ... and it works great. In the past, I did do the ketone readings (and will again in the future) and it is fantastic to see the two readings side by side. I highly recommend Keto-Mojo.