I give it a nine stars only because I wish they did the ending a bit differently, but I love the drama series. I have watched it 3 times already. Would really recommend it. One of the best versions of the Hana Yori Dango and Meteor Garden story. I recommend the other versions as well. They however are longer and have 2 seasons.
The actors did a great job in this drama. I also wish there was a bit more to Ga Eun's love story.
I actually became a fan of Lee Min Ho only after watching the drama Heirs, here his character always annoyed me. But I ended up rewatching it a third time and observed more closely and noticed how his character really grows. I no longer think of him as annoying here.