I have never heard of them and field is not my area of knowledge. Hopefully someone from a field background can weigh in on pedigrees and such. They look very active with their dogs which is a good thing.
Of the two litters listed, if that is what you are looking at, I like the Ike x Maurene litter from a clearence stand point. Both parents have CHIC certificates, which earns a big thumbs up from me.
The other litter is not as strong on clearances. You would need to ask to see Zoey's eye clearance and Pistol only has a practitioner heart. For my comfort, it would need to be a heart by Cardiologist. We have Sub-Aortic Stenosis in the breed, so I like to see Cardiologist.
Overall, by just a short peek it looks very promising.
If you are looking for help, it would be a good idea to tell the forum what you are looking for. As an example, if you are looking for a hunting companion who can go all day, a dog with a lot of drive, or perhaps an agility prospect. The forum will guide you to breeders with dogs like that. If you want a family companion who will be content to go for walks around the neighborhood and then veg on the couch with you, the forum will guide you to a breeder with dogs like that. Let us know if you want a top show dog, acompetitive obedience prospect and so on. There are a lot of helpful folks on here.
Good luck on your search!