I started with EWQL Symphonic Orchestra Silver Edition and now have moved on to Gold. Installation was easy with iLok but at first did not have enough GBs to install (Gold requires 35GB). East West sounds are simply world class.
The key is to play your parts in with the character and feel of the instrument you are attempting to replicate.
Remember winds need to breathe, and strings use up and down bows. Playing in appropriate and characterstic registers is absolutely essential, too.

Best wishes from the San Francisco Bay Area.

George