You also have to remember that you purchased dogs from a different region than you live, and there may be some differences in type that the local breeders just don't prefer.
It is important whether they say "we just don't like her" or if they give you specific things that they would want to improve.
Like Lisa, and Pat, I was blessed to be surrounded by people who would point out nice things about my first dogs (actually all my dogs)…. if they didn't have anything nice to say, they didn't say anything ...but they were still very polite to us. And if I asked them to critique a dog, they would point out the things that they would want to change....but nobody ever suggested I don't breed a dog; and nobody every pushed me to buy/breed one of their dogs instead...that would be very transparent and rude!
A good rule of thumb, is if someone says 'oh, I just don't like that dog' but can't tell you WHAT they don't like, then they probably have some ulterior motives, or subconscious reason why they don't like it.
I have seen your bitch (at least if it is the one I am thinking of, the tri at the BCOC specialty last year?) and I remember her catching my eye in the ring. If you want to send me some pics, I will give you my honest opinion:)