Been using them for over 1 year. I absolutely love them. their app is fantastic, you can input as much or as little info as you want. I am using an I phone 8 and have no issues with my meter, I just had to get an extender due to my phone case. Customer service is great. I have never had to wait more than a couple hours for a response. I get extra strips when ever I need them and I get them with in 4-5 days of ordering them. I know some people complain about how long it takes to get strips, but I have never had that experience.