I have one and went through the same questions as you. I love the way it looks, so modern and sleek. I also have an extra deep one which is great for containing splatter from the faucet. It's very easy to clean. I've never had residue or gunk in the corners. It's pretty much the same as a regular sink, but much cooler looking.

I have a Julien j7 which I think is a .75 radius. I love it and it is easy to clean.

Actually I checked and it is 7 millimeters which is 9/32 of an inch.

We installed an Elkay Avado zero radius sink six years ago during a kitchen remodel. It's 10" deep and has a very flat bottom, so level installation is important for even drainage.

We have no problems with gunk in the corners, but I run a slightly soapy dishcloth around the inside and rinse it well after the nightly dishes cleanup.