What benefits does it have comparing to coffee?

One of the great differences between matcha and coffee is the large amount of antioxidants contained in each serving of matcha (1 g). Specifically, each dose of matcha contains 1384 ORACs (method to measure oxygen radical absorption capacity), 53 times more than spinach.

One serving of matcha (1 g) contains approximately 35 mg of caffeine, the same as an espresso coffee. When you drink coffee, you are likely to notice the high energy generated by caffeine and, after about 2 hours, a sudden downturn, also called caffeine crash. Matcha, in addition to containing caffeine, contains L-Theanine, an amino acid that causes an extended release of caffeine, creating a state of calm-alertness without jitters or energy high and lows.