The Bf 109 is, without doubt, the most satisfying and challenging aircraft that I have ever flown.
Other factors affecting the '109 as a combat plane include the small cramped cockpit. This is quite a tiring working environment, although the view out (in flight) is better than you might expect; the profuseion of canopy struts is not particularly a problem. In addition to the above the small cockpit makes you feel more a part of the aeroplane.