Phaser 74

Sounds pretty good but there is an issue with the mix control. As you move it towards the centre position the sound gets quieter until it virtually disappears. To me that suggests the wet sound is out of phase with the dry sound so it starts to cancel out the sound. It makes the mix control almost unusable.

It's the same with the other free plugins.

I didn't want to leave this as a comment but I can't find any contact details of their website.