The use Standalone is a huge advantage over all the VST plugins that may exist. It can play live with just one application running, no need to Cubase, Audition or other soft greedy and long load.
The only difficulty in the RSID SETTING THE sound card to find the right compromise between latency and sound quality.
The PC is not a big problem as there is a minimum of RAM (512MB). The sound card intgre the motherboard is prohibited. Treat yourself to an ASIO card, there is the affordable, and the gain is standard (near-zero latency)
I no longer use that has since I've Discoveries! The guitar plugs directly into the PC (via a pramp-bypass and the sound is simply stunning: a real guitar sound with fat saturation and progressive of the big clean almost saturated. The sound of Queen is falling! My amp hardware begins to rust ...