I have been to Smokin' Joe's on a few occasions and have mixed feelings.
The wings are some of my favorite around (probably why I keep coming back), they have a variety of flavors, quality wings with plenty of meat on them, and they are very reasonably priced. In addition to the wings their Taco Tuesday special is a wonderful value with quality taco's compared to what you get at other restaurants during this special.
While the food is the bright spot of Smokin' Joe's the service and atmosphere certainly is not. In the four times I have been there, I have never seen more than one server on the floor and one person staffing the bar and it shows in the service the customer receives. It can be very difficult to get a drink refill once you have already received your food unless you are seated at the bar. In addition the servers are not very friendly, I attribute this to being understaffed, they always seem rushed and stressed. The bar at the front of the restaurant makes sitting at the bar a poor option.
Overall, I would return to Smokin' Joe's for the wings or with friends on Taco Tuesday but it would not be my first choice.
(Side note: if you spend $50+ dollars your receive a $5 gift certificate for your next visit...which is nice)