That does sound very positive!
I described experience with Trilafon (perphenazine) in the thread I referenced in my OP here. It was quite effective at clearing my head and curbing my mania (and psychosis). I wasn't on it more than four or six weeks. I think I would give it another chance in the future, if needed. I don't recall sedation. I remember taking 12 mg/day.
Navane (thiothixene), at 10 mg/day, was helpful, but not as helpful at controlling my moods as the Trilafon (12 mg/day), which I took right afterwards. Navane eventually gave me a dystonia (involuntary lip puckering) so I was taken off of it quickly. Navane was definitely weight neutral for me. I gained some weight on Trilafon, but the gain may not have been med-related.