This Rudi's Gluten-free Hamburger Bun was found in a supermarket freezer, so it's hard to know if it was dry because it was frozen just as it was drying out or if it was dry when it arrived at the supermarket, my local NYC chain, Gristedes. I toast my hamburger buns, so it didn't make that much of a difference when I was using it for burgers. But I have been known to munch on a soft and chewy untoasted burger roll just as a snack, which I wouldn't have done with this one.
The shape is a little odd, more muffin-y than hamburger bun-like. Once again, nothing that was a deal breaker. Perhaps a tad larger in diameter than the Udi's, so still a good fit for the vegetable burgers I make. A little less sweet than Udi's, and it's that sweetness that reminds me of the buns I grew up on. If I were shopping for the week and the store was out of Udi, I wouldn't search the neighborhood for them, and would happily use Rudi's. If both were available in the same store: Udi's, definitely.