I'm an admitted EU hater. However, I'm not blindly so. There are a few diamonds in the rough. Drew Karpyshyn is definitely one of them. Head writer at BioWare, he was one of the brains behind the genius that is KOTOR (the game... not the crappy Dark Horse comic series).
Anyway, I really liked his first Darth Bane novel ("Path of Destruction") a lot. Definitely one of the best EU books out there. The second ("Rule of Two"), however, was a huge step down in quality. This was due to a couple of factors: 1) Karpyshyn only had about a month to write the book, because it was a last minute replacement for James Luceno's Darth Plagueis/Palpatine book that LFL unceremoniously scrapped. 2) Because of the timeframe the book covered, Karpyshyn was handcuffed to include a lot of really lame stuff from previous EU stories about Bane, including the horrifically stupid Orbalisk armor.
But I'm happy to say he has redeemed himself with "Dynasty of Evil". I started reading it yesterday and I'm about 2/3 of the way through it and it's already much, much better than "Rule of Two" and on par with the first book. It's also apparently leading to an interesting climax at the end which could have a pretty significant impact on the characters in the EU Old Republic canon.
Anyway, if you read either of the first two books and were on the fence for this one, I'd highly recommend it.