Claudio is a simple character that controls the mid range perfectly with his tools such as b+1 a homing safe mid knockdown or fast approaches like f,F+4 and f,f,F+2. His strengths are his strong mid attacks and his unique Starburst (STB) mechanic which gives additional properties to some of his moves for example getting access to a safe mid launcher with db1+2. He can control the opponent's movement very well with his long range attacks. He is arguably one of the strongest characters at the wall since his mixup with SS.4, b+1 and df3,1 is a very low risk high reward mixup.
Claudio is a beginner-friendly character having the smallest movelist in the game and not having execution heavy moves. He fits players who like to play with big strong moves and control the range game, but still want to be able to start good offense. His panic buttons like his hopkick uf+4 and db1+2 can evade a lot of attacks from the opponent and come with a comparable low risk.
However, Claudios great mid attacks come with the drawback of his lows being relatively weak. They all have either high risk or are locked behind sidestep. Opening up very defensive players requires him to take more risks which he doesn't necessarily want to do