I can only base that on my personal experience so far .
The Pioneer units are very good what ever end of the scale you are looking at, and if you don't mind buying a unit that is a couple of years old you can get a very good spec device for a lot less pennies.
The unit I have now has a much better BT setup and BT audio is far better compared to the pioneer , Audio adjustments are better , Apple car play is brill and the voice control works very well, google maps is spot on.
Display quality is far better aswell, its just a better unit compared to what has been in the car to date.
But it's all down to personal choice and preference, I know we allways say this but that's how thing are, what works for me may not be as good for you.
Its allways good to get as much feedback as possible on a subject before taking a leap of faith , but at the end of the day, that's what it is really.
hope that make sense.