4 beds 1.5 baths doesn't work for AirBnB?

[Steven Line]

Hi -

I'm evaluating whether to convert a long term rental to a short term rental (STR). One STR property manager with a lot of experince said a house with 4 beds 1.5 baths wouldn't work. She suggests I add a bathroom. I don't want to spend that money so my decision is go or no go with the 4 beds 1.5 baths? I haven't heard this advice anywhere else so would like some additional opinions.

Thank you,

Steve