SIGH -- Not for the choice of game, but for the fact that the Amber RPG's author, Erick Wujcik, is dying of pancreatic cancer. A third really good gaming author we are going to lose this year. I've never been a huge fan of diceless RPGs, but the Amber RPG did an excellent job of capturing the spirit of Zalanzy's Amber books and the diceless system Erick came up with for it seemed to work for the game and world.
Yeah, I'd heard about Wujcik. It is sad news. But I'm looking forward to trying out Amber. I love the series (they are possibly my favourite series of novels, and have influenced my writing 'voice' a fair bit). My headache has been trying to find a space to set a campaign - afterall, the family is supposedly reconciled and stable at the end of the Patternfall war.
My basic idea is going to be that the characters are unknown children of Amberites from previous dalliances (ie: the kid you never knew you had) who have been dug up by someone who'd like to throw the succession back into debate. After that, it depends on what the characters want to do. You can't get much more freedom of choice than playing a godlike being with a choice of infinite universes...

I used to be very uneasy around dice, but the last campaign I ran had me thinking that the dice largely served to mean that characters could randomly fail at something that was meant to be the core purpose of their character. Being lousy in combat is fine when that's not your gig, and fights should always be a little unpredictable... but it's when the scholar flubs a knowledge role, or the socialite fails to be persuasive...
But anyway. Im in danger of ranting.