Take care about theft. The scam is children approach you from both ways. While you are looking at one side they steal from the other. Although I know about this method, last time I crossed the border I was too tired (all day on the train then the hot and slow border crossing) to attend to them. When I had a chance to look at my bag I noticed they had opened a pocket and stolen my expensive smart phone. almost 8 years ago
Because thousands of travellers get funnelled into this one place, it attracts plenty of con artists and scammers..... but it's not "dangerous" in the strictest sense (unless you go into one of the bars near the casinos in Cambodia and refuse to pay the highly inflated bar tab - the bouncers at these establishments are very persuasive!).
If you're a seasoned traveller you will most likely breeze through without any trouble (although slowly). If you're a new traveller, the best wrap-up of advice on possible scams and rip-offs I've seen is this one:
Phil almost 8 years ago