We are close to buying the product but would like some feed back on users deployment experience

Have many of you deployed the product in medium to large enterprises...say 50 to 250 users and if so was the response of your users positive?
Do your reports "behave" themselves in large scale deployments eg: muliple users attempting to access the same report file.
Would providing the reports as .mrt files in a shared dir be the best way to go or should we store the "masters" of each report as binary in a database?
Did you experience any problems with deployment and if so where Stimulsoft quick to respond?
Do you allow users to modify their reports and if so where the users generally positive about this feature?
many thanks for any comments
Andre