I'm extremely partial to the quarab, partly because my first horse was one, partly because I like both those breeds. The arabian gives the qh/ paint side a kick, which is what I like, lol. My quarab was fantastic- we competed in gymkhanas, mostly just poles and barrels. He ran on average 16 second runs in both. He was FAST, built completely for speed, and was pretty good at turning- not great, though. He was more speed than turn... I would say he was pretty much a 50/50 in every aspect- physically, and especially mentally, he had lots of get up and go but wasn't insane, he was so intelligent that it scared people, extremely friendly, liked people more than horses, hated dogs and coyotes (he would run for hours chasing coyotes in the desert, leaping and dodging bush and cacti, the coyote was always first to give up) and overall was just the best horse in the world for me. He passed away last April, and I still miss him very, very much.
The biggest problem with quarabs, to me, is the same as my issue with any cross- it must be done responsibly, or else you're going to get a funky little thing that can't excel one way or the other.
Overall, I really like this filly from what I see of her pictures. She looks like she's athletic, maybe taking a tad bit more from the qh side than the arabian. Overall she seems like she has a pretty good balance between the two sides. Her neck is a bit short, but that's okay. She looks well put together and balanced, with a good flow to her body. I'm not going to go into detail because I feel that I'm not as knowledgeable as I could be, but as a whole, she's a nice looking girl. How old is she? Sorry if I missed that!