Duck a hit, chicken not so much.
These are good value bags especially with the current offer. The biscuits are chunkier and slightly larger than the normal purizon. Similar to the wolf of wilderness biscuits if you've had those. I'd upload a picture but i can't seem to see the option, perhaps because I am on my phone.
The duck was a big hit with my blob, who tends to prefer the beef and salmon of the normal purizon. The chicken he did eat begrudgingly but only when thats all that was left. He would pick out all the better biscuits first, as i mix them for variety.
For this price they are definitely worth trying and if your dog doesnt like them, I am sure a neighbours dog or animal shelter would.