All I can say is I should’ve bought these earlier. The previous clippers I had were rated professional but were in no comparison to the quality, speed, functionality, and durability of these. I use these for personal use on my Aussie doodle, who has wavy thick hair. I asked a groomer and she recommended these along with another brand that was 4x the cost. Those weren’t in my budget but these work so well that I have no regrets. I would go over the same spots and unstick hair from the plastic attachment combs every few swipes taking me over an hour to simply cut the hair evenly. I bet it took me 25 minutes to do the same job and I could leave it long for Midwest harsh winters. I added a picture of the combs as these were a great pairing. I am unsure if I had gotten plastic ones if I would’ve been as happy with the results. So for $150 I have clippers and attachments that work very well and save me a tremendous amount of time. How much does it cost to groom your pet? This is priced but you won’t buy 3, as I have done in 2 years, if you just grab these the first time and swallow the slightly higher price tag. Also, I spoke with a friend who works in a vet office and the blade can be sharpened if you don’t want to replace it when it gets dull, which saves about $30 in replacement blade cost. She even used these on her horse. Highly recommend grabbing these trimmers and the metal attachment blades for personal use!Slight negative: As others stated, they do get warm. I found I was done cutting as it got to this point. I would think a pause for the motor to cool would take care of it if you are cutting multiple animals. [...]