wow factor 
noun informal
A quality or feature that is extremely impressive: its funky, futuristic looks would add a definite wow factor to any kitchen...
- Some of the executions have an undeniable wow factor.
- An inexpensive basket or cool container chockfull of bargain goodies packs a big wow factor.
- In a picture book, every time you turn the page, there has to be a wow factor.
- well-decker
- well-defenced
- well-defended
- well defined
- well-delivered
- well-demeaned
- well-derived
- well-descended
- well-deserved
- well-deserving
- well designed
- well-desired
- well-determined
- well-developed
- well-devised
- well-dieted
- well-digested
- well-digger
- well-directed
- well-disciplined
- well-disguised
- well-dish
- well-dispersed
- well disposed
- well-disputed