We often use (opinion + fact) adjective for example : "an interesting young man" , "a nice long table" etc.
And also we use (adverb+adjective) for example : "a reasonably cheap restaurant" , "an extremely good game" etc.
As far as I know we don't use (opinion + opinion) adjective instead of (adverb+opinion adjective)
I mean we don't use "a reasonable cheap restaurant" instead of "a reasonably cheap restaurant"
Is there any rule about this context I don't know ? or Is it just a more idiomatic way to use?