Got one of each in the garage, 4 post is generally used for storage or minor maintenance like oil change and great for front end alignment.

2 post is used for major work...I love those lifts. Wish I would have bought one earlier but did not have the room for it.

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)