As someone living in the center of Barcelona, i might have to come over to Galicia in the future. Hows the public schools in general, similar to here in catalunya i assume. Buying anything around here feels like a half million investment and its not wort it.
The kids get to take a couple of classes in Gallego instead of Catalan, but otherwise I don't see too many differences.
Fair warning, that if you want to live in a city, while Vigo and A Coruna are cheaper than Barcelona or Madrid, I don't think its that stark a contrast - my friend was buying in a rural village, an hour from Vigo.