I'm pretty glad that Cheffini's managed to evolve from a cart to a standalone restaurant. The glorious hot dog is one of the most perfect foods to follow a drunken pub crawl around downtown. It gives me a reason to set food once again in Container Park - a place that didn't interest me much before.
Keep in mind that you're getting gourmet hot dogs in here. A plain dog will cost you $4.99, with the fancier stuff going more toward $6-9. ~$8 is a little much to pay for one hot dog, but hey, I could tell they used some quality ingredients into my dog, so I'll let it slide. If you are more of the "quantity over quality" type, you may have to sit at a nearby casino cafe and order a gigantor hot dog that they usually serve for a couple bucks.
Price point aside, the hot dog I got was very good. I got the Crunchy Dog - a hot dog concoction with all sorts of crunchies all over it (bacon, potato chips, fried onions, etc.). It's also topped with nori (seaweed) and sriracha mayo to give a bit of an Asian twist. I wasn't necessarily blown away by it, but it was still good.
Would I come back? Probably. The price point is something that I'm starting to see from all renovations going around east downtown. There are times that I crave a hot dog and go out of my way for it. Cheffini's does one good and it's definitely some of the best in the area.