A great alternative to propriatary software with high license costs. Reliable and free of viruses. Having used it almost exclusively at work for years both as a desktop and a server I would recommend it. We started using Linux in 1996 for servers. Soon many who currently use unlicensed copies of software - often without knowing - will be faced with difficult choices. Open source software is a good choice if it can do what is needed, and it usually can.
Guyana has an active Linux user group - GLUG.