This is an interesting market to be able to buy textile, etc., but do not ever buy anything related to computers, I bought a memory card for my camera and nothing worked properly, not to mention the iPad. For clothes it is fine but arm yourself with patience, as you will have to haggle.
One of the best places to buy electronics in Beijing is the commercial centre of Honquiao. Everyone knows it in the Chinese capital so if you say it to a taxi driver they will understand. By the way, it is pronounced "June bye". Haggle, haggle, haggle. That is the key, and don't compromise on quality. Generally the devices are legit although I would not swear that they are always 100% authentic. I bought a memory card for my camera and speakers, and truthfully, while it looks authentic and works perfectly it's just not the same as the original brands. Overall worth buying here for prices but you just never know if what you get is completely original or not. In terms of variety they have everything you need be it for your SLR, replica iphone, ipod, laptop or PC accessories.
The Place is one of the best and most luxurious shopping malls in Beijing. It is in a central area of the city, near the embassy district or the Silk Market, between the streets and Dongdaqiao and Dongdaqiao DongCe. The noticeable thing here is the big screen that is installed on the outside, apparently it is one of the largest in the world, at 250 meters long, and on it are projected ads or documentaries. In The Place you can buy the best brands in clothing, accessories, electronics, cosmetics and food. Well-known brands such as Armani, Dolce and Gabbana, Versace or Marc Jacobs can be purchased here.