twice my phone kicked me out when I tried to practice while traveling. If I could do double the work when I have my laptop and raise those tow days where I missed just a few points, it would be more humane.
If you are having a lot of problems you can always get Duo plus. You don't need to be connected to the internet.
not having a lot of problems I just think it is not suited to different situations, just like if I spend twice as much on one thing I spend half on another, I have the choice of how to spend my time and money. Choice is everything.