No grid power, no drinkable water, Heating via wood burner, cooking via bottle fed lpg cooker and access only via water or towpath...
All of the issues that come from boat living without the option of starting your engine and moving somewhere new.
The list glosses over waste by saying it's via a septic tank, I would imagine that would be problematic to get emptied (and would probably need upgrading / replacing to comply with the new regs that kicked in from 2020 and take effect on change of ownership)
I remember talking with the residents around 6 years ago and they seemed new to the property at the time, they were using a small open fibreglass boat for transport (including school run) and were experimenting with an unofficial turbine dropped in the bywash for extra power