SIMBA is not as good as they advertise
At first everything was fine, SIMBA seemed like a cheap choice in exchange for a lot of data. There weren't much disruptions a few years back but recently the disruptions have gotten worse. I can't even use my phone underground in the trains without my data lagging. And there are times when the internet would just completely shut off with no warning, leaving you with absolutely NO DATA AND NO BACKUP PLAN. Don't recommend it tbh, go for a more expensive but better and smoother data experience.