They are very receptive to any issues we present. We have a pretty large installation and a large number of developers plus editors.
Like any app, it can take some effort to get things configured correctly for peak performance ;) and sometimes this is not limited to infrastructure alone.
You are welcome to contact me off-site. If I can't answer your questions I can find someone who can.
Farcry is more than a CMS, it's also a framework and that makes it a very powerful tool to create complex web applications. It's important to give yourself some time to understand the basic architecture of a Farcry application to take advantage of all the features and be more productive with it. Having spent some time with Geoff and the Daemonites for more than a year, I can safely say that Farcry is in the hands of one of the most dedicated, committed and community oriented team. The built-in CMS functionalities will save you a lot of time and if you need more, the underlying "formtool" mechanism is the key to develop in Farcry. This is one of the first area to investigate if you plan to use it seriously. About the docs, read carefully to which version of Farcry it relates to as from a version to another, the differences are huge. And if you don't find the answer, there is a mailing list where you generally get an answer very quickly - dare I say one day.