He's 'having a rough time (of it)'. = He's 'going through a rough time'. [=he is having a difficult time; his life has been difficult recently]
The project still has a few 'rough edges'. [=the project still has a few things that need to be changed or finished]
Don't 'be so rough on them' [=don't punish or criticize them so harshly] for making a mistake.
(..) lt's like a joke. lt's not a joke, it's an amusement park. lt's the best amusement park in the world. All you have to do is have fun. There's some pretty rough-looking customers here. How many of them are...? Guests like us? Who knows? That's the beauty of this place. lt doesn't matter. lt may look rough, but it's still just a resort. There's no way to get hurt here. Just enjoy yourself. What is this stuff? lt doesn't say. (..)1973 Westworld