We bought these for our factory Christmas lunch, the sets are very cheap metal, extremely thin and very very sharp.
Myself and 2 of my teams were cut quite deeply on various areas of the pieces, the fuel holders were particularly sharp.
The inserts were very difficult to prise apart and when we washed them afterwards, they discolored - they also went black where the fuel cans were below the trays - again, I suppose due to the very think metal.
They were a good price, but I suppose you get what you pay for - I would genuinely say that these are almost disposable due to the quality.