This interview will be more thorough and allow you a chance to win the job offer. The on-site interview may seem more intimidating because it takes you out of your element and places you in unfamiliar territory. Remember, however, that recruiters invite you to their offices so that you may get a feel for the organization and meet people who might become your colleagues. Therefore, while the level of formality will be higher, the opportunity is well worth any additional stress. If you are prepared to answer questions about yourself and have conducted extensive research on the organization, the experience should be, believe it or not, enjoyable.
Travel can be fun, but remember that an on-site interview is a business trip.
Expect to participate in more than one interview with one or multiple recruiters. Prepare to be asked variations of common questions as well as questions for which you may not have prepared. Maintain your enthusiasm and focus throughout the process. While you may not know with whom you will interview, be prepared to meet with many people from various departments within the organization. For example, you might interview with the recruiter who conducted your screening interview, and then with a panel of recent hires.