Docker containers in an LXC

Hey Squad.

So, I have been doing some home labbing. I wanted to just get some applications running in a really light weight environment as my hardware is just a couple of old pcs.

So currently, I am installing docker in LXC containers due to it being super light weight and I actually pushed the hardware to about 5 services. Which is more than I thought I would get out of it.

But my question is.. is their a downside to doing it this way? Whats the real difference between installing docker in lxcs over vms. Besides that the VM has its own kernel? Are their any cons to this approach?