For some reason this series became something of a punching bag for redditors and MAL users. If you read the reviews on here, they're all extremely dismissive and as uncharitable as possible - they aren't really talking about the show, just saying "Hey, we all hate this show, right? I can make fun of it and no one will argue with me, right?" Glasslip's extremely low score has more to do with this weird social meme than the actual quality of the show. I think if you like slice of life, romance, and drama, you will enjoy the show a lot.
Contrary to what you might hear, lots of things actually happen in Glasslip. There's much more romantic progress in Glasslip than in most anime of the same genre. All the main characters feel like completely new people in the 13th episode as compared to the first. I guess the "nothing happens in Glasslip" meme has more to do with people's attitude towards slice of life in general rather than this show in particular. After all, people used to say the same thing about K-on for years before it eventually became more accepted as a modern classic.
The presentation of the show is the strongest attribute, as it takes inspiration heavily from the works of Osamu Dezaki. Director Junji Nishimura is old-school, and his affinity for the Dezaki Style is very apparent. The direction makes heavy use of Dezaki's most famous technique, the artistic still-frames known as postcard memories. It works very well here, as it sets the slow pace of the show, and lets you take in every peaceful moment.
After I picked up Glasslip, I found it hard to put down. The feel of the town of Hinodehama, the old-school presentation, and the classical music work together to make a short series that is mysterious, dramatic, and endearing. I look forward to rewatching it in the future so I can relive all the bittersweet moments and piece together more of the mystery of the "fragments of the future."
