WeWork is useful! I think it gets a bad rap (though the atmosphere and the general vibe of the clientele probably does not).
But unless you're in SFBA or Manhattan, office space is just not that expensive. As soon as you're making payroll, it's pretty insignificant. If I start from 1-2 people again, I'll probably consider WeWork again. But I'll get out of WeWork much faster next time, too.