I have to say that this is probably the most useful place in the game. In GSC you had to wait until very late Kanto to get certain Pokemon, and your options for a Johto team were much more limited. With the new Safari Zone you get access to Pokemon that were a lot harder to get in GSC, such as Murkrow, Mr. Mime, Larvitar, Midreavus<3, and low-level evolved Pokemon like Magneton, Muk, and Marowak. Also, I just realized that all of those except for Larvitar begin with M. Weird. But that's beside the point. Who else loves the Safari Zone?

I think HG/SS's Safari Zone is great. It's fully customisable, so you can catch a huge range of Pokemon. My only problem with it is that it's too great. You can catch too many Pokemon.

I don't like it. It seems complicated.

The Safari Zone is a great tool to catch a very wide range of Pokémon, but I particularly hate the Objects' mechanics; you require a huge amount of days (up to 250 days) to encounter some good Pokémon.