Originally Posted by canadiancow

Technically EDGE (which is 2G) can support up to 1Mbps. I wouldn't get caught up on the 3G/2G distinction, because there are a lot of overlapping speed ranges as you move from EDGE to UMTS to HSPA to HSPA+ to LTE and beyond.

Also, even when your speed is limited, you may very well be connected to a 3G/4G network.

In my case, I prefer T-Mobile, because my primary roaming destination is Canada, where I certainly get better than 256kbps. But if you typically go elsewhere, Fi may be a better option if the data speed differences make enough of a difference for you. Or if the cost is enough of a factor.