I saw a couple of films when I was back home too. I was fully prepared to hate Berberian Sound Studio (its play for hip left-field kudos as an amalgam of basically every cool theoretical, musical and cinematic trope of the last 5 or 6 years was way too obvious, plus it is essentially David Lynch's Wire-reading younger brother.) Nonetheless, it blew me away, despite all the Ghost Boxy trappings. Haven't seen Kaitlin Varga yet, but a few years ago Monster Bobby was bigging it up (and he no fool), so I am prepared to believe Strickland is a bit of a major talent.
I also finally caught up with another film Monster Bobby recommended way back, A film by Harmoney Korine. Normally I'd run a mile (and Mr Lonely, which I also saw, was excruciatingly twee). Trash Humpers however is as properly disturbing as you could want. A plotless, degraded bit of VHS found footage.
But nastiest and most brilliant of all was Kill List, highly likely to be overlooked as, unlike Strickland's effort, it doesn't make an overt play for the smart-set (as I was heading into the Cinema a hipster chick was squatting down next to the Berberian poster and posing while her boyfriend took a photo) and is pretty much an offshoot of the British Gangster movie. Certainly clunky in parts, nonetheless, it is a genuinely horrible film, a truly infernal vision of English life.