Can anybody give me some info about how good/bad this is and whether it is worth getting.
Do you have a link to the product so we can give a better answer to your question.
Full title is British Airports South and South East.
this package adds gates and enhances the airport scenery. Here is a review from www.play.com
An airport expansion series that breaks the mould! From the smallest to the largest, you'll find Britain's airports modelled with a care and attention to detail that¿s second to none. With interactive docking systems at busy international terminals, cars parked beside grass strips and all the airports in their correct geographical locations, your flights around the East and South-East of England will be a genuine transport of delight. What's more, British Airports will blend seamlessly into the popular VFR Photographic Scenery series and this great value compilation brings you 61 airports in a single pack
This is a good addon and is really good value for money.
British Airports South & South East
It also enchances Heathrow, Gatwick & London City as well
For £17.99 you can'y go wrong.
i have this add on and it is superb, yo even have little busses etc buzzing round your airport and at Lakenheath, there are fighter aircraft flying overhead. You need to have your scenery settings on very high tho.