It's a great basic colour for warmer seasons like spring and summer, since it's not as harsh (or as hot) as black or navy (though I won't be putting away those colours for the season just yet). There's also so many different types of grey you can wear, that you can put it on everyday and no one would know you were wearing the same colour. There's salt and pepper, silver, metallic, and then there's light, medium, and dark grey. You can wear it patterned or graphic. There's greys with a blue, purple, or green tinge to it that give the look that something extra.
Here are some of my favourite grey pieces right now.
Tip: If you love this trend but think too much grey will be too blah for you, try adding a bright statement piece like a necklace, belt, or bag to give the look a little twist!