We get 3-4mb/s using our landline, but could get around 90mb/s with 4G. Before we moved here, we used to get around 35mb/s at our last house.
IMHO satellite BB is a total non-starter nowadays if you can get a 4G signal and use an external antenna.
We both work from home and use the internet (land line) for 9hrs per day, 5 days per week, it isn't great, but is perfectly usable. Our iPlayer is also fine in the evenings and weekends. All of my PC data also backs up to the cloud still.
Our issue with 4G is the amount of data that we use, which would get worse if we finally ditched the landline and switched to a full 4G broadband system as we cannot get 4G with Three (who do the cheap data allowance as mentioned already). We also had some teething problems with our VOIP phones when doing a 4G trial a few months back and could only get the sound to work in one direction.