I worked there before...food wise,got expensive one and cheap one lor,if you can mix in then normally the food is not a problem,transportation is better than malaysia if you are not driving,the subway system is quite complete,transportation not expensive at all,taking bus is like 1rmb,subway is 2 rmb...most of the spending is on the place you stay

seriously?mistress is not a job la...zzzz...can try to get a gf that is still studying in uni la,gave her place to stay and have her bringin u around the city,dont know how much it costs though

most of the thing are good,the "but" is the crowd
all places are crowded,please notice i didnt say "most of the places"
if you plan to go out during weekend,good luck and have fun squeeze yourself into public transport like a sardine in a can
if you have car,you will stuck in the jam,traffic in beijing is crazy
if you are a photographer,every photo you take,there will be people

if you really want to go to places like the forbidden city or great wall, i will advise you go at weekday, the crowd will be lesser

yea,having mistress can be dangerous,if she decided to cheat on you,one day u get home and everything went missing,or middle of the night some guys rush into ur room and claim that the gal is his wife and the rest of the stories you can imagine la

air,depends where u stay,the petrol they used is better than malaysia,so the emission of gas from the car is very little,plus since olympic game,all the factories are forced to close down within the city center
but outside of city center is another story,air is polluted
overall, the quality of air is slightly better than KL

if not staying in hotel or going to rent an apartment and stay there,remember to report yourself to police station,its ok also if you didnt report,but if you ever need to go to renew your visa in china,you will need that paper,or if you going to report police for any cause,you dont have that you will be in trouble