Her ballads are really worth listening to they're pretty nice: amaenbo, hoshikuzu, kingyo hanabi....
She has some good fun tracks like Momo no hanabira and SUPERMAN.
Her upbeat desperate rocks songs aren't worth listening imo, you can listen to them at your own risk (Happy Days, sakuranbo and Pon Pon are among some of the most terrible things I've ever put my ears on LOL - It's paradoxal but the instrumental version of Happy days is really worth listening though
)