Definitely look at her, she's gorgeous. Although I am a little worried about the paint's front legs... Make sure to get a good look at them when you see her, because they look.... wrong, to me. The pictures aren't the best, though, as you can barely see them anyway. But I suggest watching them.
As for being worried about her being too much horse, don't be. You have your trainer with you, and you're being cautious and riding her before you commit which is great- take your time, don't worry, and if she's The Horse, I'm sure you'll know. Good luck!