Happily enough, the aircraft has been coated with some teflon thing that helps make cleaning easier... just add water and the bugs tend to slide off relatively easy, as long as you don't leave them baking in the sun for a few weeks
The biggest problem is one of visibility! Trying to spot that "traffic, 2 miles, at your 12 o'clock, opposite direction, same height" is a little bit problematic when it's a small spot on the windscreen... in amongst about 4,000 other small (and not so small) spots!
The real frustrating part, is that half of them end up on the windscreen during taxi and take-off!
