FB in 2005 was better in some ways, but iirc it didn't have pages, events, or communities yet, and those were truly useful features. I was a holdout until I went to college and saw how many clubs and stuff, even marketplaces (pre FB marketplace), were usefully organized on FB.

I could log into FB, browse the world-famous UC Berkeley meme page, RSVP for a comp sci talk, message my 8 group chats, sell my iClicker, buy a dining commons swipe, and message one of those "my sister needs a date for a party" ads all in one place.