Moulds are old but not too worn. Navwar makes a cheap inacurate but not bad looking line, perfect for hard battling without being worried about your models. Comercialized by Minifigs. Hulls are very nice, some people like sails because they are filled in three dimensions, but I think they are a bit exagerated, semi-spheric. Same problem as with Skytrex.
Moulds are a bit worn.
They have a lot of different models and they are well done for such a scale. Same usual problem with sails but not so acute. You can do it on a handkerchief and feel claustrophobic. Not expensive, new molds and still the best for very big actions with simple rules.