score:3
Yes, they issue in 4 working days. But sometimes it takes more time to be issued, so I recommend to apply earlier. The Visa Application Center advises you to apply one month before the entry to China. According to the Center (proceed to Step By Step Guidance):
2. How far in advance should I submit my application?
You should make your application well in advance of the planned travel date. You are advised to apply ONE month in advance but no earlier than THREE months. Visa processing time varies with location. Please click here for the processing time of this Visa Centre. However, you should be aware that actual processing time may be longer than that posted on the web site in certain circumstances. If there is such a delay, you will be notified by the Visa Centre staff.
When there is a delay a staff at the Visa Center (not consulate) immediately notify you via phone or email (in my case it was both). If your travel date is imminent, you can tell it to the staff and they report it to the consulate, which according to the staff takes it into consideration. In my case it took 2 more days while the expected date of issue was only 5 days before my trip.
Upvote:2
I have experience with Chinese visas in a couple of places, and I always use the 4 working days facility. In essence, it means 4 working days, plus the day you are applying, if you are applying via a travel agency or similar, or even directly if applying late that day. I've applied for dozens of Chinese visas, and have always received them on schedule. But my experience is limited to HK, France, and Singapore.