I used to think it was difficult to keep gravel neat, but now I am surprised at how neat it remains. We have a gravel path on one side of the aloe garden for eight years now. The dust and small debris disappear under the gravel. We have never needed to rake as the gravel is open on all sides and the wind blows the leaves away.
A tip:- Nobody can walk quiet on gravel. Work the gravel into the garden's design to look pleasing but also as security on those sides of the house where it is needed.
This garden used to have lawn all the way. That was somewhat dull.