Does not recommend this product
EDIT: review of klarna app
Might be OK if you're a retailer to try and get new customers and provide an alternative payment method, but it is a seriously broken consumer app, or needs a LOT of work. it's a nice UI and app, but is tremendously slow when viewing a product. Product was 30% more expensive after actually landing on the item, and the only interesting item I found was out of stock.
Until Klarna app can communicate with the retailer about stock availability and/or remove unavailable products, it is just a web browser for browsing the actual retailer. It is a cool idea, but very bad execution IMHO.
I thought I was cranky when I first uninstalled the app, but I slept on it and still feel like it was a really lousy experience overall.