i have had a very bad experience with We Love Ragdolls / Love Ragdolls (Facebook), Love Ragdoll Cats (what they call their website now). The all-white Ragdoll i purchased from them in November 2013 has HCM!! she was 5.5 months old when i got her. On her 13th month birthday (out of the "health guarantee" period), she started panting after moderate exercise, for at least 30 seconds after a one to two minute romp! It has not gone away, it has gotten a little worse... i took her to the vet who told me she has the early signs of HCM, extremely common in Ragdolls being bred by breeders who don't test for the HCM gene... or don't care.
The cat is extremely frightened around people and does not want to be held on only allows petting for a few moments at a time. I have read elsewhere some are kept in Jessica Perry's garage under filthy conditions and it smells.