I think the Hunsaker does well for the price. The only griddle I would pay more for would be one that had 1 inch side walls welded to the griddle to manage grease and have kind of bumper to push food towards. One flat backside might also be preferable. I primarily use mine for smash burgers while using a Blackstone for sides and burger toppings.
Some day I would like to cut and weld my own griddle set up because I really think it could be done better as DIY project. An improved design just doesn't work well for cost and design vs sellable price. I would probably go flat back that is open for air flow, 1 inch lip all around, and improve how the grease/scrap gets diverted into a waste bucket.
Its just really hard to beat the Hunsaker price point, but it is affordable because they probably have a CNC plasma cutter set up to crank these things out in seconds. I would recommend that you buy it direct from their website so Bezos doesn't get a cut of a small business trying to offer a good product.
I tend to like the Blackstone for breakfast a little more just because it is quick and has a little better heat control. (Sorry!)