With so many using Kushina and Minato Edo, he isn't great. Really can't punch through Grudge defense without Kushina, Minato, or Bee damage scaling. I get more annoyed when I see him when using grudge, than fearing death because fight just takes longer. And don't really fear him at all with Minato or Bee teams. I could certainly see an argument for using him with Grudge, or other ninja as #2. I wouldn't say he is weak, but I wouldn't put him in the highest tier of ninja a F2P can get. He isn't "S" class, but probably A+ for F2P. If close to 4* means you are only 4 or 5 frags away, then I would go for it. But, if you are like 30 frags away, I might change gears and only grab his frags for free from events when something better isn't there.