I think Neu! is technically overrated. Their songs sound like the 10 minutes version of a 3 minutes pop rock song. I can definitely understand the charm of Neu!, they're fun and easy to listen despite being a bit repetitive and shallow, but more tempo changes, a bit more twists, and style progression would be really nice, I know those guys are able to do that. I wouldn't say that they're one of the best Krautrock bands ever, Neu! is nothing compared to many Germany's symphonic prog giants like Triumvirat and Wallenstein, but I still think they deserve more popularity.