Yes and no.
If you’re used to poking around with electronics it’s not hard per se, but the holes are s m a l l !!!
And the old caps seems to like it there so they don’t want to leave the board 
But it’s not difficult, hard or anything like that if you’ve done similar stuff before. It’s hard to fail, that’s what’s hard about it hehe!
OTOH if you’ve never used a soldering pen … maybe it’s a better idea to ask a friend who has? 
And if you ask me, any old EMU card around 5 years old like mind should have the caps replaced because now I hear again . . .