Bought the fuse tap primarily for helping switch an always on power outlet in a Ford Fusion to something that was only on with the car keys in the ignition. Since the ford fusion doesn't have many fuses that are tied to the ignition, I used this tap to control a relay to control the power on the 12v outlets. Fuses were stiff, which while a little annoying when I was having to figure out which fuse would be bet to tap into and having to change amperages, it's good to know they'll stay in place after I finished the modifications. Overall, easy to install, and the only big issues were related to the rest of the car (like needing to trim the plastic fuse box cover a bit to accommodate the fuse tap)Cost of these was nice, certainly better than the ones at an automotive store, and having a few extras could be nice to have when I work on adding a dash cam and other small car mods I'm thinking about