Yeah, I debated back and forth between the two for over a year. It depends a lot on your garage size (especially ceiling height) and what you want to do with it. Initially, I was planning on getting a MaxJax, which is a portable 2-post lift that is designed for low ceiling heights. Most 2-post lifts require over 11' foot ceilings. Plus, you need to drill holes into the floor to anchor them. Four-posts don't have to be anchored. You can do routine maintenance with a 4-post, but you probably won't be able to do everything like pulling an engine or even a transmission (although that might be possible). I got a rolling bridge jack with my lift to help with wheels/brakes/suspension work.
4-posts are also a bit more expensive, but are easier to use. You just have to drive it onto the lift rather than trying to line up the car between a 2-post lift and lining up the lift arms. Plus, that extra parking spot may come in handy. It is the perfect spot for the next gen NSX.
