Sheets is capable enough for the average person but a business is always going to want to use Excel because it's the industry standard.

I can't remember the last time I actually needed a spreadsheet for anything other than looking at a bunch of tabular data, but I'm a programmer so I'm not the standard spreadsheet user.

Nothing compares to excel. There are spreadsheets, and there is excel. The world runs on excel, and for a damn good reason. Also, excel runs the world, literally.