grammar

It's a fragment. As such, it's grammatical but it's not a grammatical sentence.

Anonymous to make it more a comfortable place to wait (referring to waiting area)

Hello Anon;

to make it a more comfortable place to wait

This is a fragment of a sentence. It is OK if you put the article first, but it is still incomplete.
People normally communicate by writing complete sentences and paragraphs.
We can help you

I did not notice that it was "more a" instead of "a more" but fortunately A Stars had sharper eyes than I did.

BarbaraPAI did not notice that it was "more a" instead of "a more" but fortunately A Stars had sharper eyes than I did.

I didn't catch it at first, either. Your mind plays tricks on you!

I'd love to say that it's because I've been using only my phone for the last week, but I suspect I would have missed it on a computer screen too because I saw mostly what I expected to see.