The first one (which recounts the journey to Thorbardin and the recovery of the Hammer of Kharas right after Dragons of Autumn Twilight) is actually decent. I thought some of it was a bit forced, but overall interesting. The second book, if I remember correctly, is largely about Kitiara meeting up with Lord Soth, who is badass. It's somewhat forgettable, but worthwhile to read.

The haphazard way in which the third book treats Raistlin is unforgivable, though. I won't spoil anything for you, but my biggest complaint is that it's like Raistlin was nothing but an above-average blackrobe for the majority of the book -- respectable, but nothing amazing. They pseudo-justify it at some point, but it's still crap.The book also takes obnoxiously forced detours in order to fit in some of the small scenes from Dragons of Spring Dawning (and another from Legends when Tas was all time-travelly), which actually don't fit at all with how the book portrays Raistlin. It's worthwhile for us Raistlin lovers to read because it's more Raistlin, but you won't read it again, ever.