Yeah, if he was running CPU work for AM then that is a little inefficient. At the moment 30 mag is about 5 GRC per day, so its a fair bit better. How long ago was this? Competition has gone up a lot over the past 2 months.
I think the VMs are underpowered, unless you go for the gruntier ones but they are much less cost effective for the price you pay based on what I looked at.
Yes it's not cost effective to actually buy these VMs but for the free trial why not, this was last month so yeah competition has gone up!