I've been driving an 88 pickup for a while with IFS and I like the way it handles but it definitely struggles offroad. I have blown a number of shocks and every time I get nicer and nicer ones but it doesn't make a difference I beat on it way harder than I'm supposed to haha
the IFS is very capable and if it is adjusted right it can go nearly anywhere a solid axle can, but if you are looking to spend more than a few hundred beefing it up, you might as well just SAS the front and save the hassle of torsion bars and cv axles.