The story kicks of without much fuss and the time travel happens within the first 20 min of the first episode. After that the story is engaging and has a good pacing and build up of relations and friendships all the way through. The actors are really good and their characters have a nice depth and dynamic. Around episode 10 the story gets a kick and plots start to speed up making it exciting to watch. The main couple has really good chemistry. They suit each other well and their scenes are good. The angst in this romance is about them actually not supposed to be together, it was never meant to be. The butterfly effect has consequences. The second couple are also sweet and the romance plot is a tad angsty, I found myself worrying about the future I knew and wishing for a new future for them. I have not noticed any big inconsistencies with this taking place in 1989. Even though the brands shown are of later date, I don't look at the brand names but rather the fashion style. I remember well all these horrible clothes, old technology and I feel myself being immersed. I am sure that if you really want to you can rip this show to bits finding loads of errors. I'm just not that kind of viewer. So far it feels like the 1989 that I remember. All in all a well done drama, with the usual Taiwanese issues (low audio quality and at least one clown character). The extremely cheesy moments didn't bother me at all, I enjoyed them, squealed and cried my way through this very sweet story.