It's only good for those starting out if they need quick units but don't have enough gems to do a 10+1 for the gold ticket. Better save that 5 FG for another good gacha.

You'll eventually round up your silver collection with enough normal gacha rolls. I only got the most useful silver which is Lilac (which you also don't have on your collection) from the normal gacha when I couldn't even get her from my 10+1s before that.