It's a reasonable office services model -- every company would like to have (at least) fresh coffee, internet, print/copy services, meetings rooms, janitorial service, etc. All the unsexy things that make a workspace into a place to get stuff done. Depending on the size, the companies may do it themselves, or may contract with one of the many vendors for that.

With WeWork, though, the sweet spot is for companies that are in between the solo entrepreneur (or the 2-3 friends) and about say 20-25 people. There is a good value for the hot desk or reserved desk for individuals.

At least in the locations I'm familiar with, once the number of people in a company gets too big then costs per square foot soar above regular office real estate in the same area. We found that having a meeting for 3-4 people couldn't happen on a whim, you had to book a room and if none were available you had to delay the meeting. Also, our meetings could never run long because inevitably someone else had booked the room afterwards and needed us out.

A lot of small things that might matter for some sorts of companies never really gave us much value like printer and copier services. While there's no true paperless office, the amount of printed stuff we generated (not counting marketing materials, which went to a graphic print service anyway) was negligible.