You just gotta like the look of it and it fits. Paying more or less is a furphy, in most instances.
You can get a 2nd hand named brand like Cusco for $100 or less.
-> Yes there is structural integrity, strength, design, adjustable etc to consider.
Edit.
I had a Cusco strut brace and it did the job. I liked the HKS Kansai which also does the job and looks great.
$100 v $550.