I just want to voice how unfriendly the UI is for customizing Estimates. 

My goal was to have SKU and Description on a Sales Order to duplicate the utility Quickbooks desktop has given the business I work for for years. QBO doesn't have Sales Orders, it has Estimates. That vernacular is frustrating enough, but OK. Next I want to add SKU. You'd think by customizing the layout for an Estimate to include SKU, it would do just that. But no, you also need to turn SKUs on in settings. That's ridiculous. I also wanted to remove Service Date. My customizing the Estimate form didn't remove that field, it just removes it from an emailed document. And lastly, I can't enter items by SKU, I need to search for them in the Product/Service field. This all creates junk or repetitious data, and clutters the screen with fields I don't want to use. 

These should not be issues for the most expensive cloud based accounting software on the market.