I don’t know anything about the bochurim but I get the impression that the secular studies department is one of the better ones available in yeshivish boys high schools. (I’m not going to swear as to what the level is objectively, but…)
They talk a lot about high SAT scores, but that doesn’t say very much when that’s really a lot more reliant on the individual student than on the school- maybe smarter kids tend to go there, I don’t know. They didn’t have any NMSFs, though, for what it’s worth. I think the only frum boys’ schools (in New York) that had any this year were Yesodei Yeshurun, HALB, and MTA.
I generally tend to get the conclusion that the secular studies education of yeshiva high schools can only truly be considered good in comparison to that of other yeshiva high schools.