Is it just me, or is UI -Sign- Goku kind of mid?

So, I usually main Goku, but there's one Goku I haven't really touched all that often: UI Goku. I don't usually like playing top-tiers, because I'm contrarian and stubborn. But UI Sign is probably my favorite transformation in DBS, so I wanted to finally try him out.

And he's not very good? Don't get me wrong, he does a lot of damage like you would expect an 8 DP to do, but his kit isn't that great unless you like eating defense debuffs, auto-dodge is kind of useless against players that know what they're doing, and his supers are just average. It seems like his only really strong ability is the ability to transform into a more broken character, which I don't want to do since I prefer the look of Sign over MUI.

Am I just using him wrong? I was doing better with SSJ3 Goku, honestly.