We did one trip, renting a car at the destination, and one trip with no car. That was it. After the second trip we got a 2001 Jeep Cherokee and haven't looked back. The toad eventually became a daily driver Grand Cherokee.
If you're staying more than a few days, a toad really is a necessity.
We tow a 2014 Focus automatic. You do need to disconnect the negative cable. The easiest way is to install a disconnect switch. Ours has a rotary disconnect. Just pop the hood, rotate the knob and drop the hood. It takes a few seconds.