Bank Transfers

If you plan to keep most of your money outside Spain and to make transfers periodically to your Spanish account, you should enquire about the facilities a bank offers for this (e.g. once the money arrives in your account, how long is it before you can use it) and what their charges are.
Extra services
Banks sometimes offer a range of services such as insurance and investment banking, which could be useful to you. Bear in mind, however, that these services can be more expensive than those offered by specialised companies and aren’t likely to be independent.
English-speaking Staff
If you’re not planning to learn to speak Spanish or feel that Spanish banking language is beyond you, you may wish to base your choice of bank on the availability of English-speaking staff. Banks in resort areas and in large cities usually have at least one member of staff who speaks English, although you shouldn’t count on this. Banks in towns and villages in rural areas generally don’t have English-speaking staff. When choosing a bank, it’s also a good idea to ask friends and acquaintances for recommendations (or otherwise) and if after a while, you find you’re not happy with your bank, you can always open an account somewhere else!