Generally, schools in Spain tend to be poorly organised and poorly structured. Salaries allow you to get by but if there's only one of you, you will normally need to share a flat in Madrid. Most schools to my knowledge offer 12 month contracts in Madrid although I hear that in Valencia, they only tend to give 10 month deals which means signing on for unemployment benefit over the summer.Student diversity: depends on the school - many NABSS schools tend to have a very high proportion of Spanish first language students. Little teacher support and normally offered on an informal basis. The IB school in Madrid has a good reputation. Having the right expectations helps and having said that there are many people who are very happy here. Hope this helps.