I have done it once. Got only one Silver, and some 3*/2*. Northing different from a lucky normal seeds gacha. Too expensive for nothing. I really wonder what kind of people are targeted with that gacha. Old players full of golds don't really need to blow all of it in a such poor rate gacha for only golds and beginners don't have enough gold to try some easy 3*/4*... Even for bond crystal it don't worth since Equipement seeds are raining and give far more bond crystal.