Love Hina has essentially become the template for school harem anime in the 21st century. While it didn't create most of the major elements that it made famous, it left an undeniable mark on the genre. The anime isn't great, and the manga is much better. But for a lot of people it holds some nostalgia value, and there's a bit of comedy still to be had in its old formula.
Watch it if you like:Edit
Physical humor, early 00s nostalgia, Tsunderes that have almost twice as much tsun as dere
Leave it alone if you:Edit
Realize that the manga is far better and don't want to ruin the story for yourself or if you just really don't like watching guys get fucking rekt and girls getting naked every 20 seconds