I have just started looking in to maybe replacing some of my lawn with synthetic lawn. A combination of backwashing the salt water pool

and a extra large dog (Great Dane) using it as a toilet, has resulted in the lawn dying completely.
I have seen some synthetic lawns from $29.00 psm to $85.00 psm supply only. A common price that keeps coming up is $100.00 psm supplied and laid. Given that I have about 100 sqm of lawn front and back I am keen to research this a bit before investing a large sum of money.
Does anyone have any experience in having had synthetic lawn professionally supplied and laid or in DIY?