Absolutely the best breed there is. I hunted with the County Louth hounds for six hours on a 20-year-old mare who kept up to the end - and got me over the ditches without even scaring me. They jump, they’re smart, they’re solid as rock.
Only … as someone said, don’t import one and then feed it like a dumbblood and expect it to be the same as it was at home. A friend did that - she said the gentleman who sold her the horse said, “And don’t be giving him that jet fuel you Americans feed,” but she didn’t follow instructions - and ended up selling him because he was way too much for her.
And, as fun as it is to jump three-year-olds, in Ireland they don’t even start young horses until they’re at least four - which is why they’re still hunting hard at 20.