These are very popular here in France and you can find them at the entrance of pretty much every supermarket sitting next to empty bottles and a pile or oranges so people can make their own juice.

Imho, it doesn't make great juice imho.

OP, if you want a serious bar-grade juicer, get a Sunkist J-1. This sucker here. This devices has a half-horsepower motor and will suck dry any citrus (lime, lemon, orange, grapefruit) you throw at it, and in mere minutes.

I own one of these (we like fresh juice at home and we have a home bar) and it's badass. You can also get it directly from Sunkist.