We've been to Jasper's three of four times and have found that the food is consistently fresh and well prepared. The restaurant is always clean, and the service is friendly in the way you want a neighborhood place to be. Casual, but not so informal that you feel like you have a new BFF.
The food is Cajun influenced, and mostly delisheous. We've ordered the Crab and Avocado Salad (outstanding, even at $18. Lots of lump crab meat and avocado. Very fresh), Jumbalaya (I thought it was delish, but if you're looking for hard core authentic, this is not your place. It's like jumbalaya for Americans). The $5 cup was almost enough for a meal. The Crab dip is not their best. I've had better and you can get it anywhere, so why not focus on what Jasper's does well? ANything with shrimp in it is a home run. Their shrimp are plump, well seasoned and properly cooked. Shrimp tacos...yum. Meatloaf sandwich looked like a heart-stopper. Thick slices of meatloaf, fresh roll, and you can add a side soup or salad for $2.
If you live in the area, I would make Jasper's a regular part of your dining rotation. It's not a destination place, per se, but it's worth checking out.