Welcome back, Hanumizzle.
Wine helped me during the transition from Windows. I'd say that 75% was fairly close when it came to the working features of the win32 programs I used. Still use it occasionally. Once a year to do my taxes. A few times every year when my employer distributes training materials on CD, with an interactive presentation and a test.
Wine is a necessary tool for when you have to run win32 apps, but learning native Linux apps is better.