The email containing the QR code Esim is not automatically returned, you have to contact the service provider, the customer service is not professional, the esim activation process is not smooth, it is not clear whether it is activated or not, but it keeps showing Activating for a long time, sometimes it says it cannot be activated and needs to contact the network provider, etc. and etc., then suddenly it automatically connects to data and uses it normally. The data runs smoothly without any problems, but the installation process is not a good experience, making customers confused and having to monitor it all the time, not as professional as Gohub.