I went trough it. It didn't convince me. It is picky and cynical. It ignores certain aspects that would be hard to debunk.
For instance it assumes often things. eg. the room wasn't checked before and after the seances. The whristbands were not checked whether they were the original ones (that could not be stripped off withouth a loud noise). It assumed the investigators were idiots.
It ignored that the light entities went trough solid objects with a sound in sync. Hard to do that with a laserpointer. Also, appearently the lights were white, laserpointers are red, sometimes green, but never white. Furthermore, a point of a laser can not manifest in mid air!!!
It claims no video footage was taken, yet original footage is in the documentary, clearly labeled as such.
Not one word about the newspaper that appeared out of nowhere and was scientificly tested to be genuine, 1944 war press, but new as if it was from yesterday. (besides, that story in the newspaper is a whole subject by its own!)
The films contained writings across the full length, one would to have to open it, unroll it, project the writing on it, roll it up again, glue evefything in place again and achieve an untouched, new look. Additionally, the guy who handled the film didn't seem to be a fool. If he said he was absolutely convinced that he took out the film that he put in then he must have used a secret mark or something.
The mediums used to speak about topics they couldn't know by their own, such as celestial bodies on a top notch science level. Also they didn't look like some desperate Con people to me.
But most important to me: the 3 professors and doctors seemed plausible, convinced and esp. not like idiots.
I have to say tho, the radio guy and the tape recorder mum didn't convince me.