This review contains no spoliers.
Kita e.: Diamond Dust Drops is broken up into various 2-3 episode vignettes that follow various female characters and their lives in Hokkaido. They all center around romance.
First things first, because this anime is broken up into these vignettes it is EXTREMELY hit or miss. At times I wanted to give certain story arcs an 8/10 overall but others a 3/10. The setting of the show is probably the best part. Not enough anime are set in winter/Hokkaido. To be honest, I would skip the story arcs that you don't enjoy and watch the ones you care about as a mini-series.
Ultimately, I'd recommend it as a light, romance show with great art and music. It's mediocre at best as a whole but some story Arcs (Akari, Suomi and Shoko) are worth it.