No problems here in terms of color bleeding naturally.  But, the color is starting to get darker, and stains super easy.  I have not yet found a good product to use that is really safe on red leather.  I had a 2011 Audi S4 with red seats and I used the Lexol leather cleaner and conditioner (which I have used for years on white leather and worked great) and it made the color come right out.  Does anyone have any recommendations?