We've lived in Lynbrook for 13 years. It's a fantastic place to live. We have a train station, 2 fantastic Primary Schools, a Children's Centre with Maternal Health and Kinder services, 2 Child Care centres, a brand spanking new Community Centre, a great set of shops, beautiful parklands, and a great sense of community spirit. But I wouldn't buy an IP here. We are 'land locked', so to speak because of the closure of through roads such as Evans Rd and Alymer Rd. The suburb is slowly becoming 'the new Hampton Park'.
If Evans Rd and Alymer Rd were to re-open it would be a different story. But I don't see that happening anytime soon. It would cost the government and council too much money to seal the road and upgrade the level crossing at Evans Rd. And to open Alymer Rd at least 5 houses would have to be purchased in order to change the (unopened) level crossing into an underpass. The level crossing was built at the time the government changed the rules to not open any more level crossings, only underpasses.
As others have said. You'd be wiser to use your money for a purchase closer to the CBD or Bayside suburbs.