I bought this sake on sale because I had seen it somewhere and was a little curious about it. It is not sweet, but has a strong sake taste, and the aroma of grapes lingers in the mouth after drinking. It is refreshing and easy to drink. It seems to go well with Western-style dishes.
It's so sweet and sour that it doesn't feel like you're drinking alcohol, it's so easy to drink (but the alcohol content is usually high, so don't be careless...)