Tinkershell, I just saw this thread! The Grosvenor is one of my favorite off-property hotels EVER, and I stay there every year when I visit WDW by myself. It has 2 pools, a children's wading pool, tennis courts, and a small playground. It's got a full-service restaurant (although the food is, admittedly, just ordinary - but if you're in a hurry, it's fine), and a 24-hour cafe in the lobby - perfect for those late-night "Mom, I'm STARVING!" moments. It's a very short walk from Downtown Disney, so you're close to lots of action and Disney magic. The bus service is something of a drawback, but if you're renting a car anyway, it's no problem. Also, it's considered an official Disney hotel when it comes to eligibility for buying tickets for E-ride nights - I bought my E-ride ticket in the gift shop in the lobby - very convenient.
Have fun!