Josh, I'll challenge the claim that there are no pros and cons.
Let's start with ease of cleaning the prumary vessel. Is it easier to clean it after 4 days or 3 weeks? After 4 days I can rinse it with hot water and light sponge rub and then Starsan to sanitize.
You can pick the next one.
After 9 weeks of beer in my primary fermenter all I needed to do was rinse with hot water and a ligh sponge rub. Starsan to sanitize before the next batch goes in. What's so difficult about that?