Awesome.
Really loved:
1 The plot with the way the story goes;
2 The mistery of who is Dodosolsollalasol;
3 The way Jun loves her, his unrealistic 19 years old maturity and the way he treats his love and cares for her;
4 - The never ending innocence and smile of Ra Ra;
5 - The side characters and stories, the neighbours, the weddings...;
6 - The Divorce Club! The idea was marvellous!
7 - The music, of course! The quality of classical music and the way it was well played in the scenes.

Didnt't like:
1 - The story of the stalker and why this was in this drama?
2 - The strange passion of Doctor Cha Eun for Ra Ra.... (there we go with another sent of a love triangle)
3 - The fatal leukemia of Jun and...
3.1 - Why doesn't he wants her support and tries to break her heart simulating a betrayal (a passion 19 years old man??)?
3.2 - Why did his mother appear and said he was dead??? - did they made a fake funeral? does this make any sense?
3.3 - Why delivering the tea cup he stole?
3.4 - 5 years?!?!?!? I really believe it was Mimi the dog who came up with this idea!!!!!!!!!

Summing up...

PLOT - beautiful syncronized story.

ACTING / CAST - great job for almost everyone!

OST - it is one or maybe the most important part of this drama! Great!!!

ENDING - Of course i liked seeing both together and all the happy endings but... The whole situation with the leukemia was AWFUL.

REWATCH - Maybe some parts or even everything until the last 2 episodes.

Do you like romantic gestures? happy and beautiful people without the awful malice of the world (except a non important stalker...)? If you do, please watch this show.! Do you like classical music, piano? Watch it please!
But be prepared to have a lobotomy in the last 2 episodes... Besides that and if you can skip this MAJOR MISTAKE you will smile and have a happy time with La La Piano Land and it's people...

I will recommend this to everyone i like and if i find someone i don't like i will recommend the last 2 episodes!