I have a hell bunny petticoat and I really love it, it is super soft and puffy. I got an adjustable one from amazon.com, I got the xlarge which can be 20-22 inches long and I am 5'4, so it works great with my PUG dresses, especially the Jenny skirts which are really full.
I have Hell Bunny and Malco Modes petticoats. I love the Malco because they are so soft. The Hell Bunny's can be a little itchy and they are sometimes too full for everyday wear.
I'm looking for one that doesn't give me that "muffin top" look where the petticoat is shorter than the skirt.
I've purchased from Unique Vintage. I like their petticoats. I also purchased from them a petticoat that is branded Malco Modes. I like the Malco Modes petticoat better. It seems to be softer then the Unique Vintage.
I adore Malco Modes pettis. They're super full, and seem to have outlasted all of my Hell Bunny ones. And the colours... oh my! I have one in peacock that I pair with everything. It's divine.
check out this blog post, it helped me a lot!