Hi, I'm a long-time and very happy user of the Mac and iOS version of 1Password.
I had been singing the praises of 1Password 4 to a Windows user friend of mine and she eventually decided to buy the Windows version. As I helped her set it up though, I started to feel embarrassed at how how convoluted and unappealing the UI is compared to the Mac version even though it provides basically the same functionality. I'm aware of the concept of being a "good OS citizen" and trying to match the look and feel that the OS's users are familiar with. However 1Password 4 looks and feels like it was built by following Windows XP-era design guidelines to the letter (if there even was such a thing).
I could provide more specifics if you want, but Im sure you have people much more qualified than me on the topic. I know 1Password 4 provides fantastic value in terms of functionality, and the app and its users deserve a better UI.
You guys do amazing work, I’m just hoping over time the Windows version will acquire more of the Mac version's design qualities.