As a ditchwitch enthusasist (look at my signature), I'd still be wary over buying this. The reasion being that for its cost you could probably get something like a Toro Dingo which is a proven performer in doing those tasks (or it may even cost up in the fullsize skid category).
Ditch Witch tends to use unusual engines (Duetz, Pettit-Lister) which can be hard to get parts for, though their dealership (while very expensive) has been able to overnight us any parts we might need.
EDIT: Just saw it uses a Kubota engine...Perhaps Ditchwitch is moving towards more conventional engines now. Thats good.