We received our Chinese visa yesterday (we are Swiss).
The biggest challenge was to be early enough to get into the embassy. It seems to be the same every year: there are hunderts of Mongolian students applying for Chinese visa during August. One of them told me, since last year they can't extend their visa in China anymore, so all of them have to go back to Mongolia and apply for a new visa...
We heard that the embassy give tickets, 80 for Mongolian, 10 for foreigners.
The first time we went there at 4am, only to find out, that there were already 15 Foreigners waiting in front if the embassy. Most of them arrived already in the evening and stayed overnight. They made a list, according to the arrival time of everyone. (Not an official one. The foreigners just organized themselves, try to keep it fair) As they give only 10 tickets to foreigners, there was no use for us to stay there.
Two days later we went again, at 6pm. There were alredy 5 names on the list, so we got number 6 and 7. At 8pm there were already 10 names on the list.
We camped there, amongst hundreds of Mongolian students. I guess usually it should be fine, just to arrive there at early morning, but as most Tourists have been there already 2 or 3 times, only to find out that there are alredy 10 Tourists waiting, every time people went there earlier. With us there were four people, who went there already at 9am the day before the embassy opens!!
So finally we got out tickets and could enter the embassy.
Documents required was same as 'Asieparterre' wrote below.
As we applied for 60 days, we had also a detailed travel itinerary on a separate sheet, because we read somewhere on the internet, it is required when applying for 60 days, but I'm not sure if it was. You have to write down all your destinations on the application form anyway.
There was no interview, we just dropped documents.
My partner didn't have his old passport. He just wrote down the "statement", there is an example at the embassy, you can just copy from it. He didn't need the number of his old passport.
Just make sure you got a PRINTED version of all your hotel and flight reservation (on priceline.com it's possible to book flights and cancel them within 24 hours).
At Golomt bank it was possible to pay by creditcard, but the name of cardholder has to be printed on the card.
We applied for rush visa (as all the other Foreigners did that day). So we came back at 4pm, but none of the rush visa was ready by that time, we all waited till 6.30pm to get our passports back.
All the Foreigners who applied that day (and had their documents ready) got their visa. There were people from Germany, Poland, Netherlands and Slovakia.
We applied for 60 days, single entry, even though we weren't sure if it's possible for Swiss to get a 60 day visa in UB. We just tried... It worked out and we paid the same amount as for 30days single entry (30US$ + 30$ for rush - picking up the same day).
Turkish stamps seem to be a problem, but not in every case a reason to refuse. A Swiss guy who applied at the same day, had a Turkish stamp in his passport. He has been there only a few days for transit on a long flight. So he wrote a statement, explaining this circumstances.
They took his documents, but instead of getting a payment slip, they told him to come back at 4pm, as they have to check his documents extra. He was really upset, but in the end he went back there at 4pm, got his payment slip, rushed over to Golomt bank and got his visa at 6.30, like all the other Foreigners.