Ah yes, this game. It is extremely chaotic with a lot of shouting, and if you're not standing and yelling while playing--you're doing it wrong. I personally enjoy it, but I also understand that it's not for everyone. Case in point: I had a friend who was very interested in playing the game, but when she finally did, she hated it so much she swore to never play again. Space Alert has a little more structure to its game flow, whereas in this game most decisions are made on the fly. I've never played it with the background music, but I've heard it's good for timing when to head back to the starting area; we kind of eyeball the hourglass.
The time limit on the game makes the rolls extremely dependent on an honor system; there's no time to verify rolls or to really ensure that gold rolls are applied appropriately to locked dice. E.g. Player 1 has one locked die and Player 2 has two locked dice; someone rolls a gold--if the gold calls it out, who knows if P1 and P2 take one die back each or if P2 assumes he can clear both? Keep in mind that while this is happening, other people are likely getting locked or unlocked as well, and P1 or P2 could easily roll an unlock on their own. Coming up with a good system to prevent accidental cheating is probably the biggest challenge of the game. If you take time to verify rolls and applied unlocks, too much time will be wasted.
Regardless of these shortcomings, it's an enjoyable game. Definitely not the game for those who dislike co-op or extremely fast decision making. I never pass up playing this game since it is short, intense, and very fulfilling when successful. A few runs with a high energy group will likely result in everyone needing a break though. Definitely better with max players in my opinion, but others might find fewer players less chaotic and more manageable.