It's all downloaded for me, but I needed sleep today so haven't gotten around to starting it up yet, but I will take the plunge soon. I'm pretty excited for it.
I absolutely suggest you get Yakuza 4 and 5 if you have a PS3. They are just filled with dozens, to hundreds of hours of stuff to do if you're a completionist or just want to do different stuff. It's been a long time since I played 4, so I can't remember a whole lot about the game, but in 5, the main characters have their own "side story" filled with interesting moments and brand new game play things. There's Taxi driving with passengers where you have to BE a good driver, then taxi street racing, dance battles, mountain hunting, batting cages, and the oh so "fun" time of visiting and befriending girls at hostess clubs. Then there's the less important side stuff like the arcades, mahjong, fishing, weapon crafting, and tons and tons of fighting. The Yakuza games are just jam packed with stuff to do.
I'm totally expecting to put in 100+ hours into Yakuza 0 and maybe have 40% completion of the things to do. I had nearly 200 hours in Yakuza 5 and never even cracked 50%.