I use his gold card religiously so I had to get the upgraded version too, and with Fodder and duplicates it only cost me about 8k, which is a huge W in my book. and after 4 games with him I can with 100% certainty say that he is OP as hell, he doesn't let anyone pass him, whether it's Mbappe, rashford or Ronaldo, I only conceded 1 goal and that was Joe Gomez's fault.
Long story short If you have fodder and can do him under 10k then do the SBC.
Kimmy is an insane card. He's overpriced, but I had duplicate untradeables (already, I know) so I did him after packing Skriniar and Theo. I use him in div 8 rivals atm, and he is incredible. See an attacker? Dispossessed. No cards after 20 games, (8 in squad battles). Such a beast, if you have dupe untradeables, complete this sbc.
Interceptions (Sliding and Stand)
Jockeys
Tackling
Recovery
Agility