I never bought into Ove having a heart of gold buried under a gruff exterior. He was unremittingly irate, rude and tedious. At the end, when he supposedly had softened, he's ready to punch out a computer technician who's showing him an iPad. I doubt very much 300 people would come to his funeral.
That said, the writing was clean enough and easy to read though some of the metaphors felt really stretched.