Cost of living is quite high here. We rent a large unfurnished house with pool which costs us 1600 euros equivalent a month. We've seen nicer properties in the region we're interested in for less than that. It's very cold here in the winter, often -15C or lower so you can spend a lot on heating.
Our main reasons for moving to Spain are the climate, for health reasons as air quality here is very poor -people burn plastic bottles to save money on smoky coal - and general poor value for money.
My son and family have property near Marbella and will be relocating in a few years too.