I have a open relationship with Linux, i use it on and off and i just got into the latest ubuntu and got a change to try out wine and it seemed to take any windows app and make it like i was actually using windows.
I wanted to know is wine that stable to use in production/businesses or are there problems that i haven't come across yet?
Wine v1 is considered stable. "Stable" is always a bit relative and I think that because of the nature of Wine and its complexity as well as the always-changing applications running on it themselves it would always be somewhat touchy.
That said, I think that if you go by the different classes of application compatibility in the Wine App DB and only use Gold ones then one can probably safely say it is reasonably stable. The Wine community is great and I'm sure will be a great help.
For multiple workstation, mission-critical use I think you would be better off going with a commercial spin-off of Wine like CodeWeavers CrossOver Linux and have the benefit of commercial support.