I actually have three dogs, which is a lot of dogs for me (don't want 4!). My third dog is a whippet and very calm and no trouble. The two poodles play and play and play. They are now napping all curled up together (so cute). Issues I have that may or may not be an issue for you:
Being greeted at the door by two poodles is a lot of poodle. LOL. My whippet comes over and stands calmly tail wagging. The two poodle leap and bound around me so much it is hard to walk and set my things down.

They don't stop until I properly greet them. It doesn't matter if I have been gone all day or 30 minutes, it is a rousing hello every time.
The poodles are on the same wavelength. Whatever one does the other thinks must be done. If one has a toy, the other wants it. If one has a bisquit, the other needs one. If one finishes his bone before the other one, the one that finished stares and pesters the other one. If one runs to the only 'allowed place to dig in the yard' the other runs over and they both go to town making a mess. If one is in the sprinklers, so is the other one.
Grooming is twice as much either in cost or time or both. I am planning on having them groomed totally differently for fun. I am glad Echo is a whippet (washcloth every so often rubbed around, no brushing).
You have to keep up with the training on both of them, so it's twice as much time.
Walking them together is not hard as long as you train them. Walking three is a little challenging for me, but the puppy is getting better. I have one of those double leashes and use that frequently.
They keep each other company when there is no one home.
They can get into trouble together.
Twice as much dog poop.
Twice as much food and water.
Twice as much barking at strangers.
Twice as much fun.
I love having two poodles. Bonnie is still young and playful, Jazz is a wildman puppy, but both are such incredibly happy dogs, they make me smile
almost all day long.
My free time seems to be taken up with dogs.
I think two is terrific. Three is pushing it, but I thank goodness my #3 is a whippet and not a poodle! LOL