I have a 2004 Andalusian/TB mare, by Botijo M out of a Restivo mare. She is gorgeous: she got the positive attributes of both breeds. She is refined like a TB without a lot of knee action; ride her in a low frame and she will go like a hunter. However, she has lots of ability to collect and has a more expressive trot when ridden in a higher frame. I am an eventer dabbling in dressage with her - we are currently showing at Third Level - but she has a lot more ability for the higher levels of dressage. She is very sensitive, more on the TB side, but quite trainable.
I was originally attempting to event her because she is SO athletic and is a very clever jumper with an excellent technique, but disappointingly she is not AT ALL brave. She is quite spooky and neurotic, but works very well when kept on the job and not allowed to get distracted. I previously tried to event a full Andalusian mare and found her to have a similar temperament, just less “hot” and not quite as sensitive without the TB blood.
I like the cross, although I find that Andalusians (from my own experiences and observations/experiences of others) can be tight in the back and difficult to effectively work over the back, and the TB tension doesn’t necessarily help with this. I’ve always thought a more level headed warmblood cross would be a better combination, but my mare is certainly talented and lovely to ride if you like a sensitive, sophisticated ride!