It’s been a few years since I read the books, so they’re not fresh in my mind, but I really, really enjoyed them; the trilogy reinvigorated my interest in the franchise after ROTS and the Legacy era had all but killed it for me. There were a few “fanficky” elements I disliked – Zahn’s explanation for Luke’s vision in the cave, his explanation of how Vader lost his hand, how he described the ysalamiri’s ability to block the Force – but they weren’t enough to ruin the story for me.
Where’s hairy_hen, though? He can sing the trilogy’s praises better than anyone on this forum.