This is my first Pullip, so I might not be the best one to ask about the brand, but just playing around with her last night, I'm happy. Her hips are a bit tight and squeak when you move them for her to sit, although I guess that's common. At least, others who collect have told me that.
The hands and feet are a bit fragile, but that's true of any jointed doll, so you're probably aware of that.
The clothes I have on her now are Barbie. Some of the items are a bit large, but others fit just fine (like that green dress). I think Blythe doll clothes will fit, as well. Pullip is basically a 1/6 body with a 1/3 head.
The main thing that's kept me from getting one sooner is the price, but I think they're fairly in line with other collectible dolls. I will say that her face is very sweet, and she looks even better in person than my pics show. Hope that helps.