Swap my Vita Comp aluminum frame for a steel frame?

[Crankin]

I have the Coda and the components have never been an issue, although I do not ride this bike very much. It shifts fine going up the big hills and has low gears to do that. It rides well with one very full pannier. But, it's slow.
A good friend has the Vita. I rode with her at least once a week this summer and she had continual problems shifting. The bike was being adjusted frequently (it's a 2009). She likes the way it rides, but will be getting something else and use the Vita as her 2nd bike.