I had to call  Shark customer support for clarification on assembly instructions.  
Additionally, the hepa filter & grill cover came loose before vacuum was assembled and operational. Customer serve will replace all w/o charge sent to me via FedEx. Seems like there's a 'spring issue' with the grill cover.

Unit has great (adjustable) cleaning suction power, but it's a little difficult for me to detach the 'Lift Away' feature for now-the unit is 'fitted tightly'. I am hopeful it will ease up with use.