These measures should certainly slow the pace of new infections.
The question in my mind is how the health threat evolves as restrictions are loosened. Will a second wave be seen? Will mutations make the virus more/less infectious, more/less deadly? Should we be prepared for long term social distancing until a vaccine and/or treatment is available.
The economic impact will be significant. Small and medium sized businesses will fold unless they can negotiate better lease terms and stabilize supply chains in the immediate term. The federal government is pulling out all of the stops in what is a losing battle in the short term and will be very difficult to kick start without dry powder once the dust settles.