I'm happy owner of two Turris Omnias for 2 years (I use them to interconnect my appartments in two distinct cities into the single LAN, via OpenVPN).

I highly recommend this router. A bit pricey, but it is worth every penny.

Ability to install run arbitrary software is incredible (not only from packages, configure/make/make install works too!). I run openvpn (see above), dnscrypt-proxy, aws cli tools (for dynamic DNS updates), influxdb, grafana, microsocks SOCKS5 proxy (for filtering out Windows 10 updates and telemetry traffic, but letting Firefox/FoxyProxy to access the internet), vlmcsd, transmission, ffmpeg (for storing video surveillance data), nextcloud and many other software on my router.

BTRFS-backed snapshots (both for base system and for LXC containers) provide an ability for instant rollback if router is misconfigured or something else (e.g. software update) goes wrong.

Both my Omnias were upgraded with LTE cards for backup connectivity (Quectel EC25-E and Quectel EP06-E). One Omnia has 1Tb mSATA SSD installed instead of stock 5 GHz WiFi card. Another Omnia has two 8Tb USB HDDs attached via external USB 3.0 hub.

Initially there were some WiFi signal quality issues which I solved by wrapping both WiFi cards in an aluminium foil: https://forum.turris.cz/t/wlan-5g-not-starting-most-of-the-t...

Omnia is a kind of hardware which puts user in control (which is an extremely rare quality in the modern world).