A restaurant I worked at in the past tried them out from what I heard they were really good, unfortunately did not try one myself.
They are really expensive from the supplier they are I think over 10 dollars making the price for resell probably be over 20 which is ridiculous for any burger. Why my restaurant decided not to carry them.
What's the price of them in LA where you found them?
around $15 here as well since it is located at crossroads, travis barker's really nice vegan spot. they also started carrying them at a chain called umami burger which id imagine is somewhere relatively the same, have not tried it either.