My experience has mostly been with their AIP releases - the Gamera vs. Monster X and Return of the Giant Monsters. That they inserted their own copyrights over films they, honestly, have no rights to (the AIP Gameras are assumed to be in public domain, though that, in and of itself, is open for debate) is annoying but livable. . . but they edited both Return of the Giant Monsters and The Magic Serpent with no real reason to do so - in the latter case it's just by adding annoying sound effects where there previously were none but in the case of the former it meant adding new special effects to the end. . .
At any rate, all of their releases can't be bad and I definitely want to pick up their Planet of Dinosaurs disc - as I said, it looks quite impressive compared to what I've come to expect from them.
Kindest regards,
Kevin P.
http://www.wtf-film.com