Before I start let me say I am a Montreal Jewish Deli aficionado, having eaten at every single one in the city. And out of the "big three", Schwartz's, The Main and Lesters; Lesters comes in third place out of maybe 10 deli's I consider good (with Chennoys in the West Island being the WORST).
That is not to say it is bad, the meat is quite good.
Service is all right too, the counter girl is charming, friendly and made amusing jokes. that made my day.
UPDATE 2016: I came back and was content with my meal the 4th time around. And, the Charming counter girl filled up my water bottle "on the house" on a 90 degree summer day. It was very nice of her!
Lester's is aight.