Jail Environment on FreeBSD. Opinions and Experiences wanted.

My company is currently developing a UNIX shared environment for web apps. They are currently setting this up on Solaris boxes and in a standard file structure. I have had limited experience with the Jail environment but think that this could be very advantageous to use for the shared environment.
I am looking for people with experience using this type of environment in an Enterprise situation, please no home use. What would be even better are articles discussing this. I have read several white papers and have it running at home but I am looking for real life examples to make my case. Thank you for your input.