We've loved the pig keeping experience
Did the Oaklands course (highly recommended) and had 4 last year (GOS Boars) and currently have 3 GOS xOSB gilts who will be off in a couple of weeks.
If you have the housing, fencing and water sorted then I would have to say that keeping pigs is less hassle than keeping chickens
Seriously - they look after themselves and are great characters
Go for it
Tish