Another Andis 2 speed fan here. I've had mine for about 6 years and apart from occasional blade sharpening they've cost nothing in terms of maintenance. I use them to clip my 12 year old Cocker all over apart from leaving some feathering. I handstrip my 7 year old Cocker but use the clippers on tops of ears, insides of ears, foreface, underneath chin and down throat to breastbone, underneath tail, fronts of front legs and back legs below hocks. I do both dogs roughly every 6 weeks.