Personal opinion, it's really important in the ISP/hosting world to identify what market categories
are a race to the bottom, and if at all possible, refuse to participate in them.
I look at companies selling $5 to $15/month VPS services and try to figure out how many customers they need to be set up for monthly recurring services, in order to pay for reasonably reliable and redundant infrastructure, and the math just doesn't pencil out without:
a) massive oversubscription
b) near full automation of support, neglect of actual customer issues, callous indifference caused by overworked first tier support
Conversely, as a customer, you should be suspicious when some company is offering a ridiculous amount of RAM, disk space and "unlimited 1000 Mbps!" at a cheap price. You should expect that there will be basically no support, it might have two nines of uptime, you're responsible for doing all your own offsite backups, etc.
If you use such a service for anything that you would consider "production", you need to design your entire configuration of the OS and daemons/software on the VM with one thing in mind: The VM might disappear completely at any time, arbitrarily, and not come back, and any efforts to resolve a situation through customer support will be futile.