The Frontier employees in Detroit were very rude and not helpful. I was traveling with 2 small children and gate checked a stroller. Upon exiting the plane I was told to wait immediately outside of the plane for our stroller. It was 20 degrees outside and we stood there waiting for the entire plane to empty before they threw my stroller in a pile and watched as I dug it out. When we finally got off the ramp I saw a Frontier employee bring a stroller to another passenger who was waiting I at the gate. I am curious as to why they could bring her stroller to her but not mine to me. Other than that, it was a great flight. The flight attendants were very nice as were the Frontier employees at RSW. The DTW employees could use some training.