My 3 children love this game. The graphics are fast and exciting: quite colourful and "friendly" - this game has an innocent feel to it. My youngest was about 4 when he first started with it and had no problem whatsoever; my 12-year old has moved onto other things but was happy to play with this until fairly recently. So, it covers quite a broad age range. The Lego s/w is, in my experience, very good quality and I've never run into any installation problems. This one worked fine on XP-SP2 and -SP3.