I've owned numerous ones from both GRE & Uniden - the latest GRE models are said to decode digital better than the Unidens, but are prone to front-end-overload in high-RF environments (especially VHF).
To be honest, if she wants this for a stationary desktop or nightstand setup, I would highly recommend the Uniden HomePatrol-1. There are no buttons to confuse her (sans the power & volume control), and the multi-color touch screen is the biggest hit to anyone I've show it to...