OK. I need to chime in...
From personal experience, I have watched videos, read through posts and instructions, and cleaned a half dozen Ninja 250 carb sets myself in the last year.
It isn't overly difficult, but not exactly easy either. I am mechanically inclined -
having torn apart and rebuilt three Pregens in the last year, methodical, and meticulous. And still, 50 % of the time I have had to remove, and repeat the process.
What I am learning, is that paying for experience, sometimes is the best way to go. I am on the fence about doing the next set myself, or having Ducatiman do them for me...
Just my 2 cents.