I didn't see a review by Will after a superficial look see.
The only Dakota "reviews" I saw were for trolling motor use. People liked them but there were no "solar" reviews I could find.
I'd hesitate on buying a Dakota at that price range. I'd prefer something Will has torn down and likes.
The first strike against the Dakota would be the lack of a low temp charging cutoff.
They don't explicably say it but it's implied
(We also do not recommend charging our batteries below freezing temperatures.)
for that reason alone I'd prefer a SOK or Battle Born, both of which Will likes