1. The new surface is not as convenient as the old one. For example, after add the potential customers to my list, I want to copy the email address, the " copy " button disappeared (which exists before), and I need to choose the whole email address and copy it myself.
  2. Previously, if I click the next page button, it can shows 2/3/more pages of customers at a time. But now it can only show one page list.
  3. The surface is narrower than before. Previously, the company info showed at the top of the page; now it shows on the left and cannot be hidden.
I like the old version, maybe you can let the users choose between the two versions.