The answers to your questoins depends mostly upon which models you are looking at. If you are looking at one of the new G-5 or C-5 models withe the new unit construction engine with electronic fuel injection about the only maintenance involved is to adjust the drive chain once in a while and change oil and filters. If you buy a new bike with the Lean Burn engine in it you will have to adjust the primary drive chain once in a while (not often), the drive chain, the valves and change oil and filters. If you buy a used iron barrel bike you will have to add points and timing to your list of maintenance items. The iron barrel is the least technologically advanced and most original model and the new UCE are on the opposite end of the scale. The UCE does carry a two year warranty as opposed to a one year on the other models. The iron barrel bikes are OK for cruising at 55-60 mph and require a good break in. The AVL can be used at a somewhat higher cruising speed and the UCE will cruise at 70mps. . There isn't anything on the bikes that can't be fixed by the average guy or gal that can read. That is the "company" story, I am sure owners will chime in here with their experiences.
Marrtyn, any new impressions of your bike to share?
Much of what you read about the troubles looks out of proportion a bit, because peole tend to bring their problems to the internet, seeking solutions. Thus, you read about alot of problems. And there are some problems which vary in severity. But many people have long ownership with very little problem or just minor ones.