Is the service on QQ reliable? Someone is here

Unreliable. According to relevant query information, most of the door-to-door services or other services on QQ are scammers. If you fall for them, they will ask you to pay a deposit. After you get to the hotel, they will ask you to pay it. The scammers are very sophisticated and hard to detect when it comes to property fees, security deposits, release fees, etc. Some even send threatening videos and knock on the door.