Site-inspecitons are essential to planning a successful meeting.   Marriott.com offers a meeting planning checklist that is comprehensive and helpful,including site inspection.  Here are some things to consider when inspecting a site:

• Virtual tours – don't let distance hold you back.  Many venues offer virtual property tours.
• Guest rooms – try them out.  Ask to see the different categories of rooms to see the actual differences.
• Meeting rooms – How will your setup work? What is the distance from the meeting room to banquet facilities, restrooms and guest rooms. 
• Food and beverage – where is the banquet kitchen located?  What is the F&B minimum?
• Parking facilities – Is there adequate parking if your attendees are driving? Is it secure? What is the cost per day?
• Safety – Get a copy of the venue's safety plan.  Does it cover all your needs?
• Security – Are there in-room safes?  Do elevators require key access so that only registered guests can access the lodging floors?
• A/V - Do they offer the equipment and technology you need for your meeting and for your attendees?  What are the costs?

Do a detailed site inspection to avoid surprises.