The main use I see, is having a way not to carry my laptop when I travel. Which will prevent anyone from asking me to give access to my files. This would allow me to protect my privacy while traveling.
https://tux.io is back online now, after extended defensive development.
What features would you like to see added? I had been planning to delete the data from VMs which had not been used in the last 30 days, but I will reconsider this now.