Probably not the best option for people unfamiliar with the Debian ecosystem. Debian testing is mostly fine (I've run it on my desktop for more than ten years), but apt WILL occasionally choose the wrong solution in the midst of mass package migrations and it requires vigilance from the user not to accept package upgrades/removals that could render parts of the system unusable.
There's about a year left in the Trixie development cycle so some mass migrations might still happen. If you choose to run testing anyway, make sure that all entries in sources.list refer explicitly to trixie and not testing -- because once trixie is released, testing will automatically point to the next Debian release and you'll get all the joys of the package transitions and mass migrations for trixie+1.
As they say, the greatest thing about Debian testing is that when it breaks you get to keep all the pieces.
There's about a year left in the Trixie development cycle so some mass migrations might still happen. If you choose to run testing anyway, make sure that all entries in sources.list refer explicitly to trixie and not testing -- because once trixie is released, testing will automatically point to the next Debian release and you'll get all the joys of the package transitions and mass migrations for trixie+1.
As they say, the greatest thing about Debian testing is that when it breaks you get to keep all the pieces.