Seldon Lab has run both our accelerator batches out of Mox, and it's been a great home base. The biggest thing it gave us was a real foothold in SF. Getting set up quickly in the city rather than defaulting to Berkeley mattered a lot. Rachel and Austin were super helpful making it happen on short notice, and have reliably supported on a range of different things since.
I'm not aware of anything else filling this gap for the EA/AIS community: Central location in SF, 24/7 access, and zero friction for hosting people, guests, and events.
I think it's impressive what they were able to accomplish on a very tight budget. The SF EA & AI safety community needs a well-resourced home, and Mox deserves a budget that matches the caliber of people it's already attracting.