I bought one...
Pros:
Gets rid of wood in a hurry.
Pretty
Nicely built
Cons:
Gets rid of wood in a hurry.
Wood must be cut to ~12" pieces, IE not "normal" fire wood size
Shoots coals OUT
Bulky
Needs drains in the bottom
It does OK on the smoke, needs a good hot fire for it to work, wet wood, smoldering fire, you get smoke, just like anything else. Keep it hot and stoked it keeps the smoke in a column going up. Its not smokeless, just "well directed".
Goes thru wood in a hurry, probably being force fed air, and needing to keep it hot, it eat thru wood.
Shoots embers out like you would not believe, not sure if its just the shape where the bounces off the inside or mixed with moving air or whatnot.
Its been relegated the to back yard, and my wife dislikes it as it burns the furniture.....