I think the difficulty adjustment is a bit tough currently, most PoW blocks goes for GPUs because of much bigger hashrate than CPUs get. Still the PoS system is great addition which helps securing the chain, I see lots of PoS blocks too. What I think there should be couple more of PoS nodes - and this network gets more secure. Technically one wallet open is enough to keep the blocks running.

What I recommend personally is easy staking and network securing with one Raspberry Pi
I can provide the armhf wallet binaries if someone is unable to compile their own.