As far as I can tell, Climate control is working fine. All button do something or other: change the display or move about the air direction. I can't say much about AUTO feature though; when pressed, it runs the blower at full blast, I'm not quite certain if that is its purpose, but works for me.
About the Accord, I've always wanted an old Accord. 5th gen being my favorite. Unlike better looking 6th gen, it has proper size and presence. Unlike 4th gen it looks just enough modern. And unlike newer cars, it is quite comfortable and has lower chassis and deep floor well.
Besides, I wanted a Manual tranny, Sunroof version, in budget- and only 5th gen checked them all.
This particular car, thanks to @usama1, is in pristine condition, very well kept, and has a good owner history. I mean who'd like to buy such an old car, with little aftersales support and big maintenance bills, from a boy racer or a car dealer?
About a swap, I have my eyes on this:
https://www.pakwheels.com/forums/engines-powertrain-parts/230115-f-s-jdm-h23a-dohc-vtec
Disclaimer: bigger engine doesn't necessarily mean you're a racer, just like being fit doesn't mean you're a fighter.