I will tell you from first hand experience, all of my systems have been converted to Windows 7. I am not just saying it to say because I am affiliated with Microsoft. I can truly stand behind this product and tell you straight away it works very reliably, fast and extremely stable. The 64bit version is a real powerhouse as well.
Anyways, what to say about Windows 7?
There are several new features that are available with Windows 7 that will assist you with deployment and management of a large number of workstations. Enterprise IT infrastructures are increasingly complex to manage. The Microsoft Desktop Optimization Pack (MDOP) is a dynamic desktop solution that is available as a subscription for Software Assurance customers. The solution suite enhances application deployment and compatibility, increases IT responsiveness and end user uptime, and helps reduce total cost of ownership (TCO) of your desktop software and IT management. To learn more about this package, please go here: bit.ly/KzkwM
Also now available is MDT 2010 (Microsoft Deployment Tool) which will help you create images and automate the OS and application installations, data migration, and desktop configuration process. To learn more, please go here: bit.ly/GZnEY
Microsoft does have an official Windows 7 Support Forum specifically for IT Pros located here http://tinyurl.com/7jq7ps . It is supported by product specialists as well as engineers and support teams. You may want to also check the threads available there for additional assistance and feedback.
Also, if you would like to read what other users have said about their positive experience with Windows 7, you may want to check out the following sites: http://tinyurl.com/5tfr8 and http://tinyurl.com/nsm3s
Microsoft Windows Client Team