Hi Valerio,
it’s interesting that you say the unwraps are quite good because so far people were rather critical.
But that just prooves my point (that I often make when people ask about “the best workflow”) that there are so many different workflows that require so many different features that it’s totally impossible to bake them all into one software. So where we have similar objects, we still have very different needs and consequently workflows.
I personally couldn’t worry less about the unwrap since I keep everything within RC. I am mostly interested in orthophotos for buildings. They need to be as accurate as possible since I use them for documentation. So I cannot just fiddle around with some parts and make them look nice - which I often wish I could! 
The only thing I do to the finished orthos is to adjust the color slightly and sometimes touch up some areas that got brighter than the rest because I had to go in closer. All in IPS and 2D, so nothing fancy there at all!