Hi tj: I have the double domsjo... and LOVE it .. mine has only been installed for about a week at this point. It's a heavy sink .... about 175 pounds. I certainly hope that it doesn't break easily ... I haven't heard that ... another member here drilled a hole for the dishwasher airvent and didn't have any trouble ...
There are many others here who have a domsjo sink that have been using it for months...
Hope you get the input you need. If you have any other questions I'd be happy to help ... my kitchen is not complete ... but I do have a working sink now...