I paid $269 CAD for 19 days of unlimited everything anywhere in Europe with shipping and all fees. It's expensive but it's just so convenient and we both have phones and tablets, as well as some long train rides to stay entertained on. The same thing in Japan for 15 days was $140 CAD. We're also going to 3-4 countries so you pay more to have it work anywhere.
If you want to save money, shipping it to the airport post office or your accommodation is the first thing you can do. Also if you can live with being throttled after 1GB of data usage (per day), you can save a good chunk more. We actually probably could have got away with 1GB/day which is quite a lot but I just wanted to guarantee no issues. The GF needs that FB/Insta
There is a 10% off code (WIFI10) not sure if it still works but it worked for me yesterday even though the promotion was supposed to be over.