It is important to check the restaurant before the big day. Go there sometime and have a dinner or just a glass of wine. Ask the waitresses about the details what are important for you. Maybe there is a vegetarian in the group or someone has allergy for a particular ingredients. It is good to know about these issues before the venue. Moreover, you have to start organizing the party on time. Sometimes these restaurants are fully booked and it’s not the best feeling when you have finally found a perfect place and it is fully booked. So just start organizing it in time! Good luck ;)