has been incredible! I send in an email with a question as they arise from flying my new EVO and within minutes or hours I have an answer. The longest I have waited for email responses has been about 10 to 12 hours? (I posted late at night) I have called once or twice before the arrival of the EVO and always found a person on the other end with knowledge and product skills not to mention speaking English! I am so glad I went with Autel and look forward to the improvements coming with firmware updates. I am using my Apple Ipad Air at this time thanks to the Beta program from Autel. Kudos to Alejandro for helping me get that setup going. Customer support makes all the difference to me. Thanks, Autel!