In theory Torment seems like a good idea, but really it's only good against physical attackers. Most special attackers can hit neutral or better. Perhaps a more specially defensive oriented Torment could work, but even then all you're doing is getting Toxic off on attackers or setting up rocks just to get booted out the next turn. Personally if you want a physical Tormenting wall I think you're better off with Skarmory, and a specially Tormenting wall goes over to Heatran.
EDIT: Oh yeah, and I forgot to mention that Torment Skarmory is trash on top of that. There was a whole analysis
dedicated to a Torment Skarmory set and it was QC Rejected.