This appears to be a Pets at Home own brand puppy food but I couldn't get into
more info to see the ingredients...
Ask the breeder what she likes about this food (hope it isn't just cost) and why she'd recommend it. She should give you a small amount to bring home and it's generally perceived to be a good idea to stick with the breeders food for a few weeks whilst the pup settles, even if you might want to change it later. I don't know this food but if it's not a good one then you could change it a bit faster if needs be by adding a small amount of a different puppy food from week 2, til you have swapped over competely.
If you can get a list of ingredients try comparing it to something like
Arden Grange Puppy. Don't be put off by price you can generally shop around for better AG prices online
Congrats on your puppy - you must be really excited :) Did you get a crate yet?