This is a classical guitar. It is hard to say whether it is good or bad, because it depends on the feel and timbre. I suggest you find your own music. It is still a little difficult to practice the rainbow in Jay Chou, but I think it will take at least two months to practice it specially. Besides, the rainbow in Jay Chou is a folk guitar.

To tell you a simple distinction, the strings of classical guitars are nylon strings, which look a bit like plastic, and the way of setting strings is the same as your picture.

The strings of folk songs are steel. It's easy to tell. Generally, 3 to 6 strings are copper yellow, and 1 2 strings are stainless steel reflective.