The vibe of this place is so fun and truly welcoming. We ate indoors, but the outdoor space is charming, especially when days or evenings are cool. Service was perfect -- not overbearing but not neglectful. Prices are good considering that portion sizes are HUGE. I have to eat gluten-free and while there aren't a ton of options, the ones that exist are good. I got roasted Brussels sprouts as an app to share with two others -- we had plenty. I also got pulled pork fries. I do wish there was a tiny bit more pork, but the flavor was outstanding and, again, portion size was huge. I ate about 2/3 and my son polished off the rest. I also had an Old Fashioned which was OK-only. Square ice cube, but it was cloudy and while I don't like my drinks sweet, this one wasn't sweet enough. Still, that wasn't enough to make me regret my experience. I don't live in Phoenix (I used to) but I have family there and I will definitely return to the Welcome Diner.