It's a great active online community of people actually building - all helping each other with their complimentary skillsets (product, designers, devs, growth)
I just rejoined after not working on side projects for a while and find it a great value - super easy to network/find a cofounder too
the value is the community - it's a bunch of low-ego high-motivation folk all building and sharing their own journeys. if you already have a large relevant community around you or don't value connecting with peers so much then it might not be for you (nothing wrong with either of those).