The first set is great.
Malatesta and
Witch are both winners from a creaky oddity pov.
Premonition is slow and a little underwhelming, but worth a look.
As for the second set, I'd only seen
The Child, which I really rate. The other two, were sadly a bit uninspiring. However, both films are definitely curios and worth a look from that independent American horror perspective, but I'd be hard pushed to recommend either unless you resonate with that sort of thing.
Despite my comments above I don't regret purchasing either set and will definitely be keeping them in the collection.