At WeWork you get to meet people from many different backgrounds and companies. I met a friend who owns an insurance company (on a Microsoft stack.), another that owns a tech company for efficient travel to work (on a React stack), a group of people who have monthly subscription box companies (Shopify + CMS) and then an individual who owns an investment firm (various advice on how startups are doing in the city.)
Each individual brings something to the table and I've learned a lot from them. We hang out on weekends and drink beer together. Socializing is critical for human happiness. That's the value add for WeWork for contractors in my opinion, the space is secondary.
There are competitors, I've tried a few, but I found the WeWork space to be more professional. It costs more, but you get more in my opinion (in terms of space.) The other coworking spaces are kind of ugly, or they don't have constant events like WeWork. I'm sure this point varies heavily depending on the city. I'm sure monthly rate helps with keeping the space fresh.
I am unsure about the valuation here, but I would consider WeWork and coworking spaces the best thing to ever happen to my social life. I went from a rather introverted person to being quite extroverted and growing emotionally. This had many other factors, but WeWork contributed.