Circupool is an online marketing genius, their cell comes with 5K, 7K and 10K hours rated version, we have many of them in the field and learned that from experience.
If you are paying $500 for one, make sure it is rated for 10K hours, other wise the genuine Hayward would be a better buy at $650.
So don't be fooled by their price or warranty, we use the cells from same factory all the time, they are not bad product, just do not over pay.
I have mentioned in other threads how to find "good" generic by their shape, we have stopped using 5K and 7K cells ourselves, and only stick with 10K version for the most Chlorine/Dollar reason.
If you only want to pay the less money up front or plan to sell your house within a year, that is different objective.