We really like SMG. We initially went with a Groupon, but have been back without one as well. The service is great, the food is good (not great) and the seats are comfy. They have fun events like Classic Movie Night on Thursdays for only $1 and half-priced draft beer. Plus if you sign up for their newsletter they have deals like 2 new release movies (specific ones) for $10.
The one drawback is the overpriced drinks. $9 for a shot of Jack Daniels is crazy, so I suggest going on deal nights and/or not consuming alcoholic drinks unless you have the money to burn. Even a soda is $3.75 which is quite spendy for soda!