Got the invite and looked around for a bit, I'm impressed with this. This actually works very well, the terminal web emulator is especially impressive compared with the things I'm used to seeing.

Sorry should have mentioned: This is pentesting/infosec/red team/blue team lab with on-demand challenges. Created by the same guys behind https://PentesterAcademy.com Quite well done. Using it since yesterday

It says "Email: (only valid company, government and educational institute addresses will be allowed for Beta access)"

Is this open to the general public?

got invite in under 5 minutes, requires google sign in though?

would prefer separate account...

Only Google login? Is this a joke?

You can also use your gmail addresses -worked for me. Invite arrived in 5 minutes in mail.

Very nice! Got the invite in my mail. This is awesome!

the link doesn't say what this is, except in the form of an 8-minute video. Is there a tl;dr from those who have signed up?

This comment thread smells of some pretty intense astroturfing.