I know these are readily available in Germany there is also a UK version, in the coming months my broadband is coming up for renewal and I have been looking into another provider in the UK. One I am particularly interested in uses the Fritzbox 7530 as it's provided router.
This must be the only company in the UK to do this, the only thing that would concern me is the wireless coverage, I'm currently with BT whilst there routers are OK their wireless coverage is the best on the market. The downside is the home router is locked down you cannot configure dns, whereas the business router, which I have is more configurable.
What's the wifi coverage on the Fritzbox and is it possible to configure your own dns i.e. using pi-hole with unbound which I use on a RPi