I can't recommend it personally as I'm still using our bugaboo fox but my friend raves about her Out n About Nipper. She uses it for her 3.5 year old when they do long walks and hikes.
I’ve got the joolz aer as my son is pretty tall and I struggled to find one for his height. It’s really lightweight which is an added bonus!
Over the years I've found Phil and Ted's to be better and roomier for long walks. They do have air filled tyres which can be brilliant for off roading but you may need to buy something called slime to protect them from thorns. I have the newest sport model at the moment, I got it second hand. I use it as a double.