The Roan Group edition is satisfactory. WZ is my favorite horror film of all time, so I've invested a lot of time and money into trying out different versions, and nothing I've seen has beat Roan.

The biggest problem with WZ editions is the sound quality. I can only assume that the original audio track was sub-par to begin with because dialogue is very hard to make out in most versions of the film. The only two editions I've come across where the sound is adequate (though certainly not good) are the Roan and the Treeline 50 Horror films anthology (though the latter has an inferior picture and jumps from time to time).