I picked up a Ubiquiti EdgeRouter X for 49 GBP and a Unifi AP-AC Lite for 60 GBP. It is dirt cheap when considering the options you have for what you are getting, if you live in Europe interface wise FritzBox is (or well was) great but they are really cheaping out on the hardware, their QoS is a joke and they are stuffing their cloud and remote access services down your throat constantly to the point where I no longer trust the boxes.
In the UK A mid to high end linksys or an ASUS-RT router would cost you north of 180 GBP, anything below 150 GBP or so is often not better than what you get from the ISP here, both BT has a decent box for the braindead and some small ISPs like Zen offer mid range FritzBoxes (3XXX series).
Before that I've basically was running DD-WRT but I just gave up on it, too many problems, advanced features are not supported, issues with routers, security issues taking a long ass time to fix and unless I'm willing to script everything It became unmanageable via the web interface.
I also consider the ubiquiti purchase as one if not the best tech purchase of 2017, I didn't realize the prices came down so much when I was looking at it as an option a few years ago it was 3 or more times the price.