Not unexpected at all, I'm far from the only one who shares this opinion. I'd admit though, 'disgusting' might be too harsh, but the Swedish language is far from a pleasant language to speak and/or listen to (obviously my opinion).
I don't really see the point of learning Swedish if you're just going to be here for a few months (besides some easy and common phrases) because Swedish is quite a minority. You'll do just fine with English.
Anyway, if you actually do want to learn Swedish I'm afraid you have to ask someone else as I don't know any material to learn from.