EssaySnark agrees that Spain/Europe is going through difficulty today.
However, OP won't be starting school for almost a year hence, and then won't be graduating for another few years. A lot can change in that time -- EssaySnark hopes that the world economy will be fully recovered by 2013!!! This could be a great time to be going to school in Spain, to ride out the market turmoil. And yes, MBAs are portable, and the IE brand is strong enough that it can open doors in other parts of the world. IE has said that recent graduates have had trouble getting placed in finance jobs due to "weakness in demand", but their career services is working to bring in international companies for recruiting and make more opportunities available.
As to the OP's question, it's tough to answer 'cuz we don't know what other research you've done or what information you're really looking for. Talking to alumni and current students is always a great way to find out about a particular program. Most schools will put you in contact with people, just ask the admissions office.
As you undoubtedly already know, IE is a good school with a good reputation, they've got relationships with lots of US schools including Booth, MIT, and Wharton, they have noted strength in entrepreneurship and international business. Some feel IESE is "better" in Spain but both are quite competitive. You should be proud of getting an offer to IE, it's not an easy feat.
If you have specific questions, we may take a shot at answering them, but otherwise don't really know what you're looking for.
Good luck with it!
