We've visited Duluth Grill before and returned recently with several friends. Every time we've eaten here, the food has been excellent, with great choices that include organic, gluten free, and natural options. The service has been very good to great every time, but the restaurant does get packed out, so expect to spend a little more time there. During this last visit, we ate there twice and called ahead about 15 minutes before our arrival both times. I highly recommend calling ahead, as we were seated within a couple of minutes of our arrival, rather than having to wait for a table as others were doing. The restaurant doesn't really have any "ambiance", since it is so crowded and noisy, but the food is well worth it.