The story started off pretty well ( but try not to be so logical when watching this drama or else you won't like it much).
I thought it was more romantic, with the previous adaptation i saw primarily focused on relationships and romance, but this one had a twisted turn.

The FL seems very lost at first, but as the story goes on, she realizes her true feelings and purpose in her life. She truly matures. One thing that bothered me about her was that she acted quite unreal and a bit fake at times, shouting and making unnecessary noises lol
The MLs aka the brothers: I think the eldest and the youngest all had good character development. We could understand their characters from the beginning, yet the middle brother's development was somehow shallow. He was cranky in the beginning and started caring for the FL, yet he acted out of character all the time. I couldn't feel the chemistry between him and the FL. it wasn't just there.

The story has minimum dragginess. The problems are addressed and somehow solved in the end. There are no loose ends.
Overall, an enjoyable Jdrama.