hes kinda annoying to hit stuff with his rivet gun. I personally think it's worse than widows ar. his shotgun however is a no brainer and is often my weapon of choice when they focus my turret
More skill. The only thing have to be good with Widow is aiming. Torb you have to worry about survivability because he only effective on the front lines, getting everyone armor, and keeping the turret up
The only skill Torbjorn takes is setting turret up where a sniper cannot easily take it out.
Of my team is failing at taking out the turret, I try to make it number one priority. With Widow, I kill the Torb first, then the turret, especially when I'm out of range.
The only thing I find difficult when playing torb is landing his little pellets. Otherwise he's one of the most self-explanatory characters in the game for me.