How is life in Kunming for foreigners?

Sometimes its good
Sometimes it feels a little restricted
Very regulated

It depends on what your expectations are. For the youngsters it's pretty boring. For the older folks it's laid back. Overall I give it a 5 out of 10.

Weather's good, pollution is not so bad, life is considerably cheaper than let's say in Beijing or Shanghai. On the other hand not much to do, one can study Chinese or teach English or simply chill, but if you are ambitious, looking for a good job etc you might be disappointed. In overall I agree with @liumingke1234

pretty much a place for dreams to die

"Weather's good, pollution is not so bad...."

I just read, that kunming was very cold in last 2 month? they are talking about die off plants... was it really so cold..? what temperature do you normally expect around Mid/October to November?

The die off was due mostly to one particular night where it got to minus 8 degrees centigrade. There were sub zero temperatures for about 4-5 days. I believe the trees affected were not native to Yunnan, but native to Guangdong which is very hot and wet most of the year.

Mid Oct-Nov temperatures are around 10 degrees C/50 F. The temperature ranges day low to day high is about 10-12 degrees.

if u are ready to cruise
and are Chinese
it might be the best place in China to retire
a lot of nice islands in Thailand Indonesia and the Philippines though
if you have a passport and some funding and a good partner (who is good looking and loaded ha! dreaming,,,,,,,,,,,,,,,,,,,,,,,,,)

Weather is the selling point. Food sucks. Totally sucks. local food, general Chinese and foreign. Service is horrid.All Thai food restaurants just serve hot pot and shao kao. No one speaks any English despite the place being loaded to the gills with Universities. They will not attempt to understand your Chinese unless it is flawless the first time. The other foreigners are aloof and paranoid. if you don't fit in to the end of the bar of Salvadors you just don't belong. Nothing to see. Nothing to do. Students are all collectively brain dead and apathetic. The fashion sense is Villager Chic. women who walk bow legged and dress in leather pants and leopard skin pattern blouses. But all in all, I like it since I generally hate life anyway. As good a place as any other.

@Zhudan
Even the weather is no longer a selling point. It really ISN'T a spring city. That's been untrue for awhile but they still try to sell on that. A true spring city is Miami, Florida. Kunming? Huh! No way. I like the leather/leopard pants when they're on a beautiful girl that has a round or pear shape ass. If you have a flat ass please girls/ladies just wear slacks or jeans! Jesus! Ha.Ha. Another thing, Kunming is not a cheap place anymore. The prices have shot up quickly in the last 5 years. Faster than salaries. So don't believe the hype.