@sky-runner If you don’t mind sharing, where are you running? I’m in North America and I’ve found the background elevation data in the Suunto App to be pretty poor. It doesn’t feel as granular as other apps I’ve used, often giving me straight line elevation changes where there should be obvious rolling hills.
However, I planned some routes in the UK last summer and was surprised by how much more accurate the elevation data was for that area. Perhaps sub-par elevation data is partly to blame for our experience with CG?
Further, climb guidance just doesn’t feel as though it was designed for the terrain I run on - rolling hills with often short, steep climbs. In the valley where I live, the steepest climbs are 10-12% over 0.5-0.75 mile. These certainly feel like climbs to me, but I’ve yet to have Suunto label one as such on any route in my area.
I agree with almost all of your assessments regarding CG. Seems it was designed for more mountainous terrain with longer climbs and descents. I haven’t found it useful in my area and simply don’t use it anymore. I think Garmin still has the edge here.