I started out with a Rogers mini-sim, the best down-load speed 1Mbps.
Am now trying MTS 4G, Novatel mc998d USB modem connected to MoFi router, and WiFi to iPad
Can get a peak down-load speed of 7 Mbps on the iPad, but the speed is very up and down , like often slows down to .5 Mbps. When trying to use Utube it sometimes hangs up. I am not very satisfied with MTS 4G and their advertised 20+ Mbps.