I am usually a fan of Lonely Planet, but having just returned from Grand Bahama, I would not recommend this guide. Published in 2001, which means it was researched before that, it is quite out of date given the tough post 9/11 economy. Examples: Running Mon Resort- closed. Hydroflora gardens- closed. Rand Nature Center- closed. Many retailers- closed, moved, renamed, etc. Restaurant prices - way out of date.
Some of this is just irritating, but some is more dangerous- eg. LP suggests that, to get to Water Cay you drive the 'dirt road' to the 'north dock' and hire a boat from a local. Do it their way, and you may be a lot lonelier than you bargained for: That dirt road takes 45 minutes on a rutted logging road, lots of forks, no signs, and there is no dock- just a narrow ramp and a couple abandoned cars. High tide there swamps a good 2-300 yards of the shoreline. Time to do a new edition, guys!
I thought the maps provided were inadequate. For some reason, LP takes the trouble to make a map of Downtown Freeport with some of the restaurants (including a Burger King!?!) and attractions located and numbered, but they don't put the map number with the review! Add that to the Bahamian's indifference to street address numbers, street signs.
Conclusion: Not up to LP's usual standards. Though useful for background information, be prepared to check everything by phone or on the web before you depart. Or skip the guide and start with the web...