I'm talking about the kind you get when you finish a book and think 'Done! (Finally!)'. It's not that you think the book is bad (because then it would be a DNF, right?) but that it has taken you what feels like forever to read, and it put you through the wringer while doing so. And now that it's done you're just filled with relief....and maybe a small bit of satisfaction *grin*
Or maybe this is just me?
Edited to add: In case you are wondering, I've just finished Peril's Gate (Janny Wurts)! All 692 pages (in hardback format no less) of it!
Edited again to add: Apologies for being AWOL for the last few days. I was trying not to completely overwhelm myself, so stayed off the computer. Hopefully I will be back, with bells on no less, tomorrow!