Internet options

Hi all -

I'm a freelance web designer and decided to take advantage of my potential freedom and have purchased an old Tablot motorhome. I'm new to the world of motorhomes, but I'm excited to get out there!

My question relates to internet as I wish to do work from the van, and can see there are a few options; I was hoping some of you out there could help me mull them over.

One option would be to simply use the 3g or 4g if I'm lucky from my mobile phone and tether it to my laptop.  One complication for this is if I do go into europe.

Another would be to actually purchase a device for caravans and motorhomes that uses either 3g or satelite internet such as the iBoost devide; there seem to be a lot of options about, such as the ones on this site: http://www.motorhomewifi.com/

Has anyone got any experience on what works best?

Many thanks!!