Of the seven Cactus League Spring Training facilities I have been to for a game, this is far and away the best one. It's not surprising it would be the best considering it is the newest and home to our Arizona Diamondbacks! Oh...and the Colorado Rockies. SRF has a great seating area, but I feel all the fun is had on the lawn. Maybe not the best view of the game, but you're not going to a Spring Training game to watch baseball anyway, are you? It's all about hanging with friends, having some beers and people watching. Don't get me wrong, I'm a huge baseball fan, but I'm estimating the average over/under on pitches I watch at a Spring Training game to be around 20.
If you're going on a weekend, I recommend getting there a little early if you are with a big group so you have space to put down a blanket. Only a few going? You should be fine finding a spot around game time.
Big tip of the review: Go to Zipps on Via de Ventura and Hayden for pregame food and drinks and then take their shuttle over to the stadium.