I have the EC tuner (not brake) on my 22" Kukri vudoo (and had the same one on my 18" MTU vudoo) and it works well. It won't make inconsistent ammo more consistent but it can tighten up groups with good ammo (SK match, Eley match, Lapua Center X, etc).
But I'm not sure there's enough muzzle blast from a 22LR at these lengths for a tuner brake to be effective. If you like the looks, go for it! Just might not do anything for muzzle rise ;-)