The Dash Down Greenville is an iconic race in Dallas. It's a must. Stay afterwards for the Greenville Parade for the full experience!
Race communication is great - you know exactly when and where packet pickups will be - local running stores and Orange Theory Fitness centers, so multiple convenient locations and even an "early" packet pickup is available a week prior. Pickup is quick - in and out with your bib and T-shirt (no vendors/expo). This is nice sometimes though, as big expos can be a major ordeal.
The swag is awesome - this year was the first year they did medals and they were nice!!! Huge and also double as a bottle opener. The T-Shirts were OK - they are usually that soft T-Shirt material but this year were just regular ol' T-shirts but, really for around 30 bucks I'm not complaining about shirts. The experience is where it's at...
Race day runs nice and smoothly - I recommend taking public transportation because of the area and # of people. I LIVE in Dallas and have never, ever driven myself to this event. I just would not do it. Riding the DART or an Uber is super easy though! Once you're there, the Start and Finish line is right next to a Central Market, so coffee, post-race breakfast, anything you want is right there.
The run is nice, through the Greenville neighborhood with one hill (around mile 2?), nice volunteer support, porta-potties, Two-Men-And-a-Truck take care of Gear Check which is easy and painless, and there are lots of "Irish" people out and about cheering you on. As the morning goes on, more and more shenanigans come afoot and the party starts.
I highly recommend making this a Dallas tradition or making a trip to Dallas to experience this day. Don't plan anything for the rest of the day, wear green, and put your party pants on!