Yes, Beijing for sure is a very interesting city.
Superchargeme has mentioned a few things already, I would just add, that, if you have someone who knows his way around, you can even enjoy great dinners and lunches all over the place. Even things, which you would never find in any normal "Chinese" restaurant anywhere in the world and things which you will never despise, but which are really good.
Go there and enjoy yourself.
In the summer, I have heard, it is darn hot.
In spring it is very cold (3 - 4 degrees Centigrade only) - I know, because that is, when I was there and froze my ass off on the Great Wall.
If I was you, I would go and not loose another thought about it.
And the hunting, as you call it, is good too.
Greetings,
Concerned