Whether it's best to hire a self-drive digger or one with a driver depends on several factors.
If you have the necessary skills, and experience to operate the equipment, a self-drive digger can save you money, as you won't have to pay for a driver. On the other hand, if you don't have experience in operating the equipment, or if you prefer to have someone else handle the driving, a digger with a driver may be a better option.
Another consideration is the complexity of the job. If the excavation work is straightforward and can be done by someone with basic training, a self-drive digger may be appropriate. However, if the job requires specialized skills, experience, or technical knowledge, it's probably better to hire a digger with a driver who has the necessary expertise to get the job done safely and efficiently.
Ultimately, the best choice will depend on your individual needs and circumstances. Consider your budget, the complexity of the job, and your own experience and qualifications before making a decision.
Also, don't forget to consider such things as access to the rear of a property and if you feel confident enough to drive it yourself without damaging either the property or the digger.