what is the quality of the revenge that montresor seeks

Why the question of quality throws me a bit, after a little thought it began to sink in.  In my estimation, death is the consummate revenge, and Montresor has planned his flawlessly.  Should there be such a thing as a perfect crime, Montresor planned it, but only because of the time period.  He took everything into account from the possibility of being interrupted in the process to being overheard by having the servants away and Fortunato intoxicated.  While his sanity is questionable and his motives unclear, his planning of the revenge is flawless and works seemlessly in his story.  I guess it could definitely be considered high quality revenge.  Hope this helps.  Brenda