This is based on my meager 2 ride experience with my new custom titanium Guru.
I have a carbon road bike, also, and I had a different carbon road bike before that. The titanium just feels smooth as butter. The bike does not feel heavier, although it weighs about 1.5 lbs more. It's just a different feeling. And while my carbon bike fits me OK, after much tweaking and research, the custom bike is made for me. I am a descending weenie and I feel more stable on the titanium, going downhill.
I know this doesn't help much, but I'd say go for it.