I have an old nautilus bicep machine like that in my home gym as well as an old nautilus triceps, pullover, double shoulder, multi-purpose, and lying leg curl machines. I love the feel of these machines and prefer them to most new machines you find in most commercial gyms these days. Only some of the hammer strength machines come close, which isn't surprising since Author Jones's son Gary was the original founder of Hammer Strength. I think you'll be pleased with acquiring this machine for your gym.
Edit: I forgot to mention the sound these machines make is unlike any cable or belt driven machine. I love the sound of the chain as much as I love listening to the rattling of 45lb plates on the end of a bar.