From the point of view of Internet users, this redirect no different from 301st, because it similarly leads to redirection of them to another web address. The difference is noticeable only for search robots, for which redirect 302 means temporarily moving the web resource to a new address. In this case, "bonding»not produced, but referenced weight not transferred to temporary domain.

It may come in handy in situations where you do not want to lose visitors during technical work on the site or a change in its design. In general, search engines are positively perceived, but the apparent abuse of the 302nd redirectory can be perceived by them as a variety clowaking, when one progress is performed content, and users show a completely different one.