Salem KQBSS Air Conditioner Upgrade + Things to watch for

[Morrones]

Hello! I've been doing a bit of reading on initial upgrades that we might want to get the dealer to work with when purchasing our Salem KQBSS. We briefly discussed the air unit while doing a walk-through this week and the dealer mentioned that in NE Ohio, mainly where we would be traveling, we would be fine with the stock model. Wanted to hear thoughts on this?

Anything else I should be looking at before purchasing. Common upgrades to ask for? I've read some lengthy posts so far on here about getting a thorough overview of everything before driving off the lot, just want to know what I am looking for being a newbie. Thanks in advance!