My experience with a Ziroli Stuka echos the above. I wound up chunking most of it and cutting my own. Some of the stuff was burned at the wrong scale apparently and didn't match the plans. Some pieces cut off the end of the wood. A large number of pieces specifically called out on the plans as aircraft plywood were instead cut out of lite ply. Two sheets the laser apparently started a fire and about 1/3 of those 2 sheets were burned to a crisp making those pieces unusable.

I've heard both good and bad. I guess you take your chances.