YOU SAID:

this is going to be nice but not too nice

INTO JAPANESE

これは素晴らしくなるでしょうがあまりにも素敵ではありません

BACK INTO ENGLISH

This will be wonderful, but it's not too nice

INTO JAPANESE

これは素晴らしいでしょうが、それはあまりにも素敵ではありません

BACK INTO ENGLISH

This would be great, but that is not too nice

INTO JAPANESE

これは素晴らしいことですが、それはあまりにも素敵ではありません

BACK INTO ENGLISH

This is wonderful, but that is not too nice

INTO JAPANESE

これは素晴らしいですが、それはあまりにも素敵ではありません

BACK INTO ENGLISH

This is wonderful, but that is not too nice