Yes, I have used them in the past and could still...I would just like to be in control of it all and not worry about anyone "borrowing" hash rate for free.
I'm using the MRR for several years and they never stole hashrate...
You can of course use my device. But it will not be cost-effective. This uses a expensive FPGA to work.
Any open source router is your choice IMHO. OpenWrt etc.