My opinion? $2500 is way too expensive for a mutt. And I can't see why any labradoodle breeder would breed for any other reason than money. Which makes me uncomfortable and guarantees I would never buy from them.
But at least they sell their dogs spayed/neutered (probably not too have too much competition though...), do OFA and CERF testing, so I guess it could be worse. I coujldn't see how many litters a year they do, but I have a bad feeling it's way too many to take proper care of puppies.
Frankly, I would look for poodle mixes at your shelter, spend a while with them to see if they make you allergic or not and just go with that... Just IMO.