Suggestion:
Add a way to check the status history of the machine by the owner (not necessarily the customers). If the machine had technical issues or downtime of a dead gpu or whatever, the rig's owner can't check how long the downtime was (unless he has some sort of monitoring software). Normally you can check your pool stats, but obviously you can't when rented.
A graph or something would be nice.
Agreed, if there is any downtime I want to know and be able to extend for the customer or provide a refund. Right now if I notice an issue, I have no idea how long it's been going on for, and have to ask the customer how long the issue was for (if they even know). In some cases they may have downtime and neither the supplier nor the customer may know.