I often see their animals and fish misidentified as Cenedese. Their fish pop up frequently on eBay with an Antonio Da Ros attribution. Ingela helped me with a muskox that was FM Ronneby. I thought maybe it was a good quality Cenedese. I was not surprised when I learned what it was, because the base was more highly polished than is typical for Cenedese.
That was a good example of collectability versus good quality.
People invest in a well known name/designer/location (for instance probably Cenedese/Murano) - one price level.
Confirmed FM Konstglas Ronneby - price level substantially lower
It was the same muskox, the same good quality but very few have heard of FM Konstglas Ronneby.
Unsigned Murano is rated higher!