Our  golden adjusted to this ramp on the first day. Our SUV was too high to allow him to.jump in and out safely.
It is light weight, travels in car easily and has a surface to reduce chance of slipping. So many people have stopped me to ask where I purchased this ramp. We actually purchased two and keep.one at our daughter's home.
We have used it every day for more than a year and it looks brand new. Highly recommend this for anyone with a large dog.