After checking all those things above, do the check for these general items, which includes: windows, doors, floors, stairs, furnace. Watch out for clever staging which clouds your objectivity. See the surrounding too, wether there are some possible noise and air pollution.
Buying a home may takes a lot of energy, time and effort. But for the future comfort, it is worth it. A bit of advice, do the viewing two/three times, so you have time to reconsider and recheck. Come at a different time of day, you may notice some things you don’t see from the first viewing.