Hi Debbie, welcome and congratulations on doing your research before you buy a puppy.
You ask a very good question and my first answer would be, yes, adult Labradoodles have great temperaments...but then I considered why and decided that I should add more:
Labradoodles, as with any other breed, mixed or pure, will have whatever is in their genetic makeup. You should find out about the parents of the dogs and if they have other litters produced, what those litters are like.
No dog is perfect, so if you get nothing but praise...well, that is a very loved dog!...but generally, if you keep asking pointed questions, you will find out that they did have some difficulties that had to be altered by a good training program.
I can say, without hesitation, that my Labradoodles are wonderful dogs. They are loving, loyal, smart, funny, and sweet. (And I think that they are so beautiful!)
But that doesn't mean that I didn't have problems with them as puppies. You have mentioned that you read these posts so I am certain that you are aware of this. :wink:
But, I just wanted to say that, as a breed, Labradoodles do have great temperaments...generally...but I am almost certain (although I don't know of any specifically) that there are some with problems.
So, rest assured that you have selected a fine mixed breed, one that is adored by most owners, but continue to do your homework on an individual basis. Check out the breeder (how are the puppies socialized, cared for, where are they raised, etc.) and ask about the parent dogs, getting other references if possible.
Also check for medical testing of the parents, this will help you to know that the breeder is searching for good traits and good health. When you know that these things are important to the breeder, you can be more confident that your puppy will be a healthy one, emotionally and physically.
All of that being said, the Lab qualities are really wonderful...as you know the Lab is one of the favorite breeds for family pets, so is the Poodle. Poodles are very intelligent. Some Poodles are know for being high-strung, but that has not been my experience. My Poodle is the most laid-back, calm, sweet dog I have ever seen. I have heard the same from the other breeders on this forum...that their Poodles and other breeding stock are fantastic familiy dogs.
From my experience, you can't go too far wrong with a Labradoodle, so long as you do your homework!
Please let us know when you get your little one!