Just a couple of comments. First the obvious - if only the Sinofsky regime was as receptive to feedback as the current leadership appears to be. Sure there was a 'preview' for 8.0, but did anyone take feedback into account?
I felt like they did but I don't have anything off hand to back that up. Given the extent of the whole process, receiving the feedback from many people, collating it, understanding it, prioritising it amongst other feedback and work already scheduled and then designing, implementing, testing and releasing a solution, I wouldn't be surprised if feedback from the preview was responsible for changes released in 8.1 & Update 1.
I'm a .NET software developer by day, so all my dev tools live in the desktop world and I've used a Surface Pro since it's release so I know what it's like to work in that environment. However I still use Modern Mail, IE, PDF Reader, Music & Video and many others at the same time as Visual Studio, SQL Server, Gimp, etc. etc. and I actually
like finding Modern apps to replace my desktop ones where I can because of the integration with the share charms and things like Play To.
In saying that I also worked in an environment recently where I had Windows 8 on a locked down desktop with NO Internet access and only desktop Outlook for internal email and in that case Modern didn't make a lot of sense so I installed an extension to boot to desktop and used it just as I would a Windows 7 machine. (I could have brought the Start Menu back too but for me there was no difference between it and the start page).
BTW: I installed Windows 8.1 on my Media Center PC and I think it's great because the live tiles of the start screen provide a nice overview of News, Emails, Calendar and other things as well as having the Modern apps scale nicely so they're easy to use on the T.V. from the lounge chair.