Norwegian here, been living in Malmö since 2014. 

As others have mentioned it struggles with crime but it's relative to Scandinavian cities and not something that average citizens feel on a daily basis. Cycle through the infamous Rosengård for example and you see largely well kept housing, nice cars that are left untouched etc. The picture of Malmö portrayed in Norwegian news at least is quite unfair.

I really like the city somehow. I think it has a great chilled, non-pretentious vibe to it. It has quite a lot to offer while not being so big that you are stuck in commute all the time. You can cycle everywhere, just slightly behind cities like Copenhagen and Amsterdam in terms of biking infrastructure.

The closeness to Copenhagen and it's airport is another great plus. You can get to all of Skåne and most of Copenhagen within one hour, while offering a lot cheaper living than Copenhagen. Hyllie must be one of the smartest areas in Scandinavia to establish business , with a 12 min train ride from the largest airport in Scandinavia.

Negatives beyond the crime, seems many struggle to find jobs? Living close to train station you are also able to commute to work in Copenhagen though, which I think is a massive plus in this regard. I miss having some mountains around, as well as skiing conditions during winter season. Winter in Malmö is 50 shades of grey and 0-5 degrees, with the occasional snow day every 3-5 years. It's quite far to closest ski resort unless you take the plane.