Hola,
I would like to give a clear recommend to the Mundo orangesimcards. I topup them and use them in Germany. The speed is very fast. Faster then our wifi
Instagrampictures, Youtubevideos, Streaming runs very smooth. I only do Appupdates via 4g. Because it is so fast.
https://topup.orange.com/
My speedtest:
http://www.speedtest.net/my-result/a/2954060179
Muy muy bien Espana