It sure sounds like hedonism to me.
How so? Is appreciating the present moment, savoring every minute of your days hedonistic? Is it hedonistic to give yourself over to the thrill of a perfectly sung Mozart aria? Or to be entirely present to the sensation of kissing your wife, if you are lucky enough to have one? Or to taste fully an exquisitely cooked meal? Cyrano de Bergerac did so with only a grape, half a macaroon, and some water. Is that hedonistic?
Or is all of that nothing more or less than mindfulness, which gives us the means to appreciate every "present moment, wonderful moment" (Thich Nhat Hanh)? To me, it is obviously the last.
Hedonism denotes that there is nothing more important than the individual’s pleasure and avoidance of pain. It is totally self-centered, and if this temporal life is all there is, then it makes perfect sense. Eat, drink, and be merry for tomorrow you may die. What a depressing philosophy of life.