What are the positives and negatives of deep focus?

Positives:

• Economical
• feels like your there
• very little camera movement
• no need for editing or very little
• imprisoned by the scene
• no distractions
• real time verisimilitude
• they are more inside their papers
• feel respected not manipulated

Problems

• confusion for the audience
• audience doesn't know what to look at
• lack of action to slow 
• feel you have to pause it suffocating
• monotones
• can make the audience not involved
• feel like an establishing shot