The bottom line for me on this one is that I find the bidding system profoundly unfun. I was really looking forward to this game, but after a few plays, found it to be incredibly mathy. Well, duh, it's a Knizia, but this is mathy squared. For every lot you need to figure out how much it is worth to you, and then how much it is worth to your opponent. Then you have to price it hoping that your opponent makes a mistake in THEIR calculations. Ugh. Plus, it always seems to work out that even the winner has lost a lot (if not most) of their money by the end of the game. Ending up at a profit seems very unlikely if you're playing properly. So this is a trading game where you strive to lose less money than your opponent. That's not terribly thematic. Medici and Strozzi must really have hated each other if they were willing to trade themselves into a hole out of spite. I want to think I'm missing something here, but if I knew what that was then I wouldn't be missing it. I generally love Knizia (he's my favorite designer), but occassionally the elegance of the design fails to generate the spark that makes the game fun. This is one of those rare cases (Quo Vadis was the other for me). If this game had a less granular bidding system, perhaps like the one in Ra or High Society, I may have liked it much more.
I was turned onto this game by a review on Boardgamenews. I happened to go to Target the day I read it, so I picked it up on a whim. The Coloretto-like scoring combined with the time pressure make for an interesting combination. It's a pretty good mental workout to do the dice addition, keep track of time, and select which colors to go for. Even with all that, the game feels pretty simple. I'd say my reservation with this game is that it seems to be more of a test of mental agility that a strategic or tactical contest. Took back the game and put $ towards Sorry Sliders.