Learn Hardcore Japanese: annai ga wakariyasui node, tooi mise ni mo ikemasu. - Because the guidance is easy to understand, I can go to a faraway shop.

ので attaches to the plain form of a clause to express a reason (“because/since”). Here, 案内が分かりやすいので means “because the guidance is easy to understand,” which naturally leads to the result clause 遠い店にも行けます. ので tends to sound softer or more formal than から.

Could you use から instead of ので, and what would change?

Yes. 案内が分かりやすいから、遠い店にも行けます is grammatically correct. The core meaning (“because…”) stays the same, but から feels a bit more direct or casual, while ので is slightly more polite or explanatory.

In 遠い店に, what modifies what, and why that order?

遠い (“far”) is an い-adjective modifying 店 (“store”), so 遠い店 means “a distant store.” The particle に then marks direction or destination: “to a distant store.”

Why is there にも after 店 instead of just に?

The も adds the meaning “also” or “even,” so 遠い店にも emphasizes “even to a distant store” or “also to distant stores” you can go.

What is 行けます, and how is it formed from 行く?

行けます is the polite potential form of 行く (“to go”), meaning “can go” or “be able to go.” For godan verbs like 行く, you change く to け and add る (行く → 行ける), then attach ます for politeness.

What would change if you used 行きます instead of 行けます?

行きます simply means “go” (you go there). You lose the nuance of ability. 行けます emphasizes that you are able to go (you can manage to get there), which fits because the clear guidance makes even faraway shops accessible.