A few years ago I sold a 1969 Triumph Daytona that I put 50,000 miles on over 5 years.
That bike had some problems built in, but the really major problem was the vibration.
At low rpm's and lower speeds it was fine, but that was not where it made its power.
Things would crack (gas tank mounts, air filters, fenders, coil mounts, zener mount, parts would go missing, bulbs did not last long, mirror was useless.
A bike that really vibrates will never be trouble free.
I do not like the style (too old for me) but would love a 500 single, if it was smooth, or even semi smooth.
I have a buel blast, 500cc single and it also vibrates like a paint shaker.
Real nice sound and power delivery, but its got to be balanced if its going to last or be nice at speed.
As dull as the new Bonneville is, its a much better bike then the new Bullet is, and a low mile used one would be cheaper.
For a little bit more you can get a V7 classic, and have a REALLY cool bike...