Morning,
I am the admin for a Facebook group called 'Common Dog'. This is a group for dog owners / walkers who live in & around Clapham. We have about 500 dog owners in our group. Here is the link:-
https://www.facebook.com/groups/343360205806453/
We are a very friendly group. It might be worth posting in our group and speaking to libra-doodle owners.
I'm a dog owner [Mastiff-X] & my feedback is very similar to that of the last poster - labra-doodles make for great family pets
As you rightly point out - the important part is finding a reputable breeder. There are cowboy breeders out there for all breeds of dogs - not just labra doodles.
We have owners of all breeds in our Facebook group - & someone may be able to give you a personal recommendation about a breeder they have purchased a puppy from.
X