This is the second "season" of an anime that is based off of a visual novel. If you haven't seen ef ~ A Tale of Memories: Complete Collection [Blu-ray], the first season of this show, you should consider watching it first. I have seen many different animes during my time as a fan, and most of them have been of the romance and drama genre. This review will not contain any spoilers, but I will address a few of the plot issues I had while watching the series.
Some people have labeled this show as a masterpiece, but I must disagree. I've watched hundreds of animes centering on Romance and Drama so I do think my opinion is well aged and seasoned with many different sources of inspiration. The main problem I have with this entire season is the forced drama. Please understand that I am not suggesting that drama created by the author is a bad thing. I understand that is what writing a story is. However, I take issue with what I would consider poor writing without essential build up or reasoning for events to take place.
In a perfect world, I would hope that any story revolving around romance would focus primarily on the characters. Romance is a story about people and their interactions with others, it's not something that can be explained to an audience in one scene. The setting, background information, and supporting characters are all important, but they should never replace the characters as the focal point of the story. In Melodies, we are hit with two different plots that essentially force us to care about something that we don't have any connection to. I don't want to go into detail due to my concern for creating spoilers, but for half of the shows focus there is close to no build up or information for why something is going to happen. You are hit over the head with it and then forced to accept it as a truth. Instead of a gradual and well rounded story its almost as if you were to turn the page and find yourself in a completely different setting with completely different characters.
It's unnerving how little the audience was considered.
All of that being said, from a technical aspect the show is by no means a push over. The art style, music, and characters are all reasonably solid and make for an enjoyable watch. However, this is a very drama heavy series and I would be tempted to say it has nothing to do with Memories other than introducing supporting characters. (Hey, they had to let the audience connect to the show somehow... because it sure wasn't going to be the story.) If you're watching this because you really enjoyed Memories and want to see more of the characters and their interactions, this is NOT the show for you.
If you're more into mature and adult themed shows and really enjoy dark themes, this will be an excellent series for you. Keep in mind I would only offer this as a recommendation to those who can get over the pacing of the story and how far removed it is from the prequel. Some may enjoy this series, but unfortunately it was not for me.