Very poor. I am a new user and have had issues with 3 out of 4 of my first purchases. I have spent many hours trying to communicate with a real person; replying yo their email, trying to call and dealing with the robot used for customer service. All have come to nothing. I have resorted to try and resolve the issue directly with the sellers. 1 of them has been brilliant to deal with and the other 2 have been very difficult. Beware if you are using the mobile app there is no support