I've never been a 'sweet spot' lover. I want a speaker that provides good depth and imaging over a wide field. All the Vandy's I've owned have provided the aforementioned traits (also owned the 3a sigs).
Having an unbalance listening room will require a bit of adjusting in placement as well as angling in/out, but it is doable. Adding some Vandy subs would be one of the first things I would do, when finances improve.
B