Well, Kimsufi servers aren't even supposed to be used in a commercial environment. They are for personal use/storage or development purposes.
OVH don't even provide proper support for these servers and they only come with single hard drives which have been used for a long time before. This means there is no RAID and the possibility of hard drive failure is not small.
I suppose you get what you pay for - cheap hosting at a reliability cost. If you're just hosting a simple LFS server with no persistence layer required then it's good enough.