Hope it's not too late to add my tuppenceworth into this.
I have a cockapoo, now 2 years old, and hope to get a second one in the Summer so am maybe a bit biased in favour of this 'breed'.
As has been mentioned they are not a pedigree, they are a cross between usually a Cocker spaniel Mum and a Poodle Dad, and have been around since the 1950's when they were first bred in the States.
As with any puppy, potential owners need to be very careful of where they are buying their pup from so that unscrupulous breeders are not used.
The Cockapoo Owners Club website has a lot of information on it on what to look for and what questions to ask a breeder when looking for a pup and I would recommend using their guidelines and adding to it as needed.
From my experience, having had dogs most of my life, they are a cracking 'breed', easy to train, happy, great personality and a joy to own, but whatever dog anyone decides to get, pedigree, cross or good old mongrel, do the checks before making your decision and make sure you can commit to the dog for life.