Does anyone have any recommendations for using Netsuite as your PIM software? We don't need much, I'm thinking of creating a saved search (with plenty of columns) and using that as a PIM file, but wanted to get some other ideas or recommendations

with custom records, you can design and build any customized solution.

I also recommend custom fields and/or custom records. Through customizations you can have anything in NetSuite. I work in a distribution company and there are easily more than a hundred custom fields only linked to the item record.