I have been doing some house construction and next on the list will be garage (hoping over winter, by spring). So, started looking at lifts and researching. I've narrowed down to 4 post (feel that this would be the safest). It appears that the majority can be secured down without digging in concrete posts. This would be nice in the event I want it moved, or decide to move and want to take lift with, etc. Primary usage would be storage and not for doing maintenance on vehicles. Which manufacturer have you purchased and how happy are you with it? Did you work with any specific local company? Thanks for the feedback.