Compare Airbnb and hotel costs.
Neither option's advertised nightly rate is what you pay. A rental adds a fixed cleaning fee plus a percentage service fee on the whole subtotal, and because the cleaning fee is fixed it dominates short stays — an 85 dollar fee on two nights is over 40 dollars a night, but on fourteen nights it is six. Hotels add per-night charges instead: resort fees and parking commonly total 30 dollars a night and appear only at checkout. The kitchen is the third factor and it is a genuine saving that scales with trip length. Together these make trip duration, not the headline rate, the variable that usually decides the answer.
Rental total
Total = (nightly x nights + cleaning fee) x (1 + service fee%) - kitchen saving x nights
Hotel total
Total = (nightly rate + daily extras) x nights
Because the fee structures differ in kind. A rental's cleaning fee is fixed, so it is amortised across more nights on a longer stay. A hotel's resort fee is per night, so it never dilutes. Rentals therefore win increasingly as trips lengthen and lose badly on one or two-night stays.
Usually, but only if you use it. Replacing one restaurant meal a day with cooking commonly saves 20 to 30 per person, and breakfast at home saves more. If you know you will eat out regardless, set the saving to zero rather than flattering the rental.