OK, from what I read Bahasa Indonesian is supposed to be a relatively simple language to learn because it has no genders, no tenses, and everything is straightforward. The big thing (and please correct me if I'm wrong) is the soundalike words like kuching, kaching, etc. But aha, I had no idea about suka!

I tried doing Spanish with Duolingo awhile ago and I felt like I was back in school learning elementary French. Let's say I wasn't impressed.