I want this to be constructive, not whiny/angry, but this product is not de-boned.
Giving this mackerel product 3 stars because there is a lot of good to be said here, which I will get into later.
My issue is the bones. If there was a warning or a disclaimer, I totally would not mind and likely would not be saying anything now. But man, what an unexpected disappointment. Says it is suitable for Shime Saba, or the Mackerel sushi you get at a sushi place for those unfamiliar with the Shime Saba name (just found out about it recently myself, but I digress).
Now to be fair, I only processed one filet for sushi. Maybe the other 4 don't have bones and this is an honest mistake? If so, I will happily edit this review. But if all 5 filets have bones in it, then please, put a disclaimer in the description so that buyers know about this and do not experience the same disappointment I did when I took a bite! I cut the first piece to make sushi with and ate it because this was what I was most excited about in my order. I had to spit it out because of the amount of bone in it. Too much bone to pick out of my mouth, I couldn't eat it and I am disgraced to admit I had to throw that bite away. Had to remove the spine from the filet, as well as all of the "pin bones" too.
Again, I'm used to removing bones from fish. But typically, when a fish is "filleted" there are no bones, not an unreasonable assumption on my part, right? Only reason for the 3 stars.
On to the good. The flavor and quality are right on point. Once I got rid of all of the bones, the flavor and quality is exactly what you'd expect from getting mackerel sushi at a sushi restaurant. Absolutely delicious! The flavor and texture were great for sure! If you're looking for sushi restaurant quality mackerel, this is it. Just know you will have to remove bone, unless the one of 5 filets I processed was a unique mishap (and if so, forgive me). Everything else I sampled from my order is simply marvelous, better quality than many sushi places I've eaten at in fact. The tuna here actually has flavor, AND a natural color! The salmon and yellowtail? Simply divine. As is the mackerel.
That said, be aware that may have to be on the lookout for bones. I took another look at the photo in the description and the fact it is sliced like it is for sushi/sashimi, and does not appear to have bones, I'm thinking that maybe the 1/5 filets I processed may have been a fluke. Not sure. Just thought I'd put this out there. If the product does consistently have bones, please put it in the description so that your customers know to expect it.
Overall, I am beyond satisfied with Oceanside seafood and its products. Buy from these guys and make sushi yourself, it will be better than many sushi places out there for sure. I mainly write this in hopes that, if bones are a consistent thing with these fillets, please consider putting a disclaimer. I know I sound "nitpicky" right now, however, when the description advertises it is for "Shime saba" sushi, I'm inclined to believe it is like other "sushi quality" fish in that all one needs to do is slice it. I'm a butcher by trade, and don't want to be "that customer" right now. That is why I wrote this in a way to be constructive, and not negative. At least, that's how I hope I came across.
I will still recommend this product to others that want mackerel sushi (one of my favorites, next to salmon roe). However, be warned about the bones and that you'll have to do some processing before slicing into pieces for sushi/sashimi.
Regards.