I used some this weekend for the first time. Top seemed like pretty good pieces, but there was some smaller pieces mixed in. Didn't seem like too much dust, but there was some. Popped and crackled pretty good for a minute or two, when first starting, but after it got lit, it settled down. There was a not so pleasant smell for a while, but not too bad. Once the charcoal was ready, no smell, and no bad taste on the food. Had it in a vortex on the weber kettle, and you didn't want to reach over the vortex, it was burning hot. I am sure some bags will be better than others, but for $10 for 30lb, I will be stopping at wal-mart tomorrow, and getting more.