Yes, check out Prusa's website to see the size difference. Generally, 3d printers look like a" car wash" with a column on each side and a carriage that moves between them. The Prusa Mini only has one column, so it takes up a lot less space on the desk / in the cabinet.

The mini still has a respectable print volume of 18cm (cubed), most printers have 20cm. That can be a drawback because some ready-made models expect the print volume to be 20cm, so such models can't be printed on the Mini, or would have to be scaled down to fit. I have never had that situation though, so no, I do not regret this size.

More importantly, the Mini is like 500 EUR which is a lot for a small printer, but a regular Prusa is at least 900 EUR so there's a significant savings involved. Speaking of prices, of course you can get a 100 dollar printer, but that's not going to be the "Mercedes Benz experience" which the Prusa certainly is.