This is a guy that really really knows his grammer. At advanced level he was more than capable of explaining all angles to me, in a holistic way that made a huge amount of sense. You don't often come across passionate dedicated teachers, but Ruben is certainly one of them.

Consiguió que mi hijo viera los deberes de diferente forma. Sus técnicas y su paciencia consiguieron grandes progresos en el niño.

realmente me resulto facil y divertido aprender con el