I don't own a BJD, but I've seen a lot of them and have browsed a few sites that sell them.
I'd love to own one, one day, but they're so expensive, I'm certain that they're worth the money, so I hope to buy one when I can afford it.
I'm not normally a fan of dolls, (they creep me out), but BJD's are so insanely beautiful, that I've fallen in love with them!
I have a doll I named Setsuna that I got from Angell-Studio, I am trying to save up some money to get another doll from the same company, I love their sculpts. She is a MSD size, so she is around 41 cm.
I own a Makie brand doll named Roi. I love the brand so much that I ordered a second one a few weeks ago.
Makie brand dolls are from the UK. They are a little different from the traditional dolls out there. You custom design their facial features yourself via their website and the company makes them for you. You can design as many as you like for free.
They are snap together dolls unlike most BJD that are strung. The eyes are also a bit different as they are attached via a sturdy eye clip. The hands and feet can be easily removed and interchanged and the head cavity is big enough for Lilypad Aurdino processors if tech-savvy dolls are your thing.
They are extremely sturdy and their faces take customization well. They measure 10"
The biggest thing that got me though is that they are extremely affordable for what you're getting. My boy Roi only cost me around $143 dollars which included dyed skin and wig. Another thing that floored me is how nice the company is. They really strive to make a lasting connection with their customers.
I love Roi. He's one of a kind. I can't wait for his new friend Perdita to come in.