Kuma is actually better than what people make him out to be.
his b.HP is a very tall AA, his frolicking bear is also a good AA, his 3 hit c-cleft combo is very fast and easily cancelable, he has an overhead special move that ground bounces, he has a projectile invincible wallbounce attack, he has an armored moved, he has a low attack launcher, he has a projectile duck, he has command grabs, a projectile invincible roll that can punish projectile spammers with a follow up grab attack that does a lot of damage, he has good range on non-kicking attacks, he has GREAT damage and a ton of health. A huge plus is that his high damage combos are retardedly easy to pull off.
he also has Vega’s jumping HP which is reasonably fast and damaging, and Hakan’s jumping HK which is a good air-to-air attack.
his weaknesses though are his slow speed, his kicks are damn near useless save for s.HK and cr.HK, he has no cross-ups, one of his two command grabs only connects with standing opponents and the other is kind of tricky to input.