That's probably good news. I thought I might have had a leak.
Especially as it says in the manual that the level should be between min and max. And mine was just below min.
By the way, I topped it up with a different type of coolant. Could this have an adverse affect ? I find it hard to believe that Alfas only run on the stuff mentioned in the manual. No problems so far though.
Also, have you noticed when you pour the stuff in, the level doesn't rise uniformly. Only at the front, and sort of tilts at an angle.