I have been on Abilify for probably a year now, I started on 2mg, but after a major depression and suicide attempt in mid-March was increased to 5mg. I have not noticed any negative side effects. I do however notice a significant change when I miss a day or two, unfortunately I am experiencing that now.
I have been on Seroquel as well, and for me Abilify is completely different. I was a zombie on Seroquel, but have had no negative reaction to Abilify.
As with other anti-depressants, it can take a few weeks to take effect, so stick with it and after a few weeks let your doctor know if you feel like you need your dose increased or if the med isn't working for you.
Wishing you well,
Jenn