As a whole
Definition 1 of 2
Pro Tip 1/3Holistic View
Use 'as a whole' to emphasize looking at all aspects of something, rather than parts. 
The festival was a success as a whole, despite minor issues.
Pro Tip 2/3General Assessment
Ideal for summarizing the general performance or state of something. 
Her work as a whole was commendable, though some details needed correction.
Pro Tip 3/3Contrasting Parts
Can highlight a contrast between the overall condition and specific elements. 
The book was great as a whole, although some chapters were slow.