Everyday is groundhog day (in case you know the movie) and every year at around the same time, very detailed network tests of German computer magazines give an interesting insight and comparison of the capabilities of mobile networks in practice.
The latest report is from 'Chip' and the top speed they've measured in an LTE network is almost 80 Mbit/s. While this is an exception rather than the norm, other values are equally stunning. Here's a link to the magazines report in German and here in English, thanks to Google translate. Enjoy!
If you are aware of similar reports about networks in other countries, please leave a comment, I'd be quite interested.