I had some Optimas a few years back.
They did me well and lasted until I sold that boat, 3-4 years.
But I have read so much complaint and trouble when they got sourced south of the boarder, I just have not been able to bring myself to take a chance at their prices again.
Lately I been getting Exide Marines just because they are honestly, the cheapest.
It seem like lead acid batteries have become "all the same" lately.
I used to go for the Die Hards, but have not had any better luck with them in recent years.
Was an Interstate fan for a long time. Even used to hit their warehouse here and got deals on their "blems".
Poor luck with a deep cycle used to run my hydraulic lift and a few rotten garden tractor batteries.
I been going for the low price, so when they crap out I don't mind as much.