What is he responds immediately?

He responds immediately implies that the person in question is very prompt and quick in replying to messages, queries, or requests. They do not delay their response and take action as soon as they receive a message or request. This quality is considered highly desirable in personal and professional settings, as it shows that the person is reliable, respectful, and proactive in addressing issues. It also demonstrates good communication skills and a willingness to prioritize the needs of others. Overall, someone who responds immediately is considered efficient, effective, and trustworthy.