I used it in Penang, the speed is quite fast and stable, I can watch youtube, surf the web,... I tested the speed up to 150-180mbps, the only downside is that the esim code is not sent immediately, it takes time to wait, the first time I bought it, I waited 6 hours to receive the code, the second time I waited 1 hour, the third time I waited 30 minutes to receive the code