No, not like oyster. In fact most like veal in texture & flavour!
I live on the most northerly extreme of the mollusc's habitat & even then, they are quite rare further south.
Ormers are only collectible on the lowest of tides when they can been found clinging to the underside of rocks.
We get some of the largest tidal moment in the World where I live with a 35 - 40' height differential from high to low on the big winter spring tides.
I am sure you wont be surprised to discover that Ormers were once a common species around our way but, overfishing , sea pollution & global warming had decimated the population!
However, as we now have heavy restriction on their harvesting, they are making a comeback 🙂
Ref the flavour - ormers are a close relative of the Abalone however they have a unique flavour that is not really in most people vocabulary to describe! They are delicious but, not even remotely fishy tasting.