Another advantage is that nearly everyone in Indonesia speaks at least two languages, Indonesian being a second language to whatever local language is spoken in

Another advantage is that nearly everyone in Indonesia speaks at least two languages, Indonesian being a second language to whatever local language is spoken in your home region. You're certainly correct about the alphabet though. In my experience, another big challenge for Indonesian speakers of English is correct grammar - Malay-style grammar is quite simple and usage conforms pretty well to its few rules. Although that applies to most people learning English as a second language. Indonesian has also picked up many new or specific terms from English. I got in trouble with my history professor because I couldn't pronounce "historiography" correctly as "historografi". (EDIT: Ok, this one might via Dutch. Recently terminology pretty much always come from English, though.)