The title says it all. In Memory, Sorrow and Thorn, Tad Williams delivers all the classic elements of fantasy, so freshly brought together with a beautiful narrative and loveable characters that I felt like I was rediscovering everything I loved about fantasy. The Dragonbone Chair is the first book in this trilogy, and as other reviewers have mentioned, the beginning is slow paced, taking 150-200 pages for the story to really get started. But once you've gotten past those first initial and essential chapters, you will find it hard to put down the book. In fact, if you are thinking of buying the Dragonbone Chair, I recommend that you buy the Stone of Farewell, To Green Angel Tower: Siege, and To Green Angel Tower: Storm (the 3 other books of the series) as well, in order to prevent any frustration you may feel when you put down Dragonbone Chair and realize that you just need to read the rest.
In other words, if you are looking for a series of epic fantasy with history, magic, dragons, mystery, a rich and complex plotline, and characters that you can laugh and cry with, then don't hesitate. Memory, Sorrow and Thorn will meet all your expectations and more. Best read I've had since I discovered the Lord of the Rings when I was a wee lad of 9.