The Weldtite lube comes in a large bottle at a low price, so you get a lot for your money. It stays on the chain well in wet conditions and keeps everything well lubricated.
Application is a doddle too. You’ll need to keep a rag to hand so you can wipe off the excess lube though, because it’s very sticky and forms big stringy bits between parts of the drivetrain.
Due to this stickiness, it’s not so great in super-dirty conditions, causing mud to stick, and we’ve had problems with jockey wheels clogging.