From my experience in Switzerland a lot of times holds true for me(in city however I can achieve a lot more then Mbit/s) But for sure it depends on location, but for now in the remote areas I have been there it worked like a charm. But recently in a relatively big city in US, i was at measly 5 Mbit/s. However I am sure there are as always areas with low or maybe even nonexistent coverage in any case in any country. But the percentage of that can cover widely practically speaking.