Our son also goes to Compass, he's 4. We're Belgian, Dutch speaking and Alec had no problems whatsoever with the fact that he spoke and understood almost no English, as there are a lot of Dutch speaking kids and several Dutch speaking teachers. The school system is quite different from what we're used to in Belgium but we're really happy with the choice we made. The school is very multicultural, which can only broaden our son's horizon. Alec will learn different things then he would have learned in Belgium but we like that, as we feel that here they learn more 'about the world'. One downside: I find Compass ridiculously expensive (which is no problem off course if the full tuition fee is covered by your education allowance...).