I like to have control over my A/C system. With the system in the Way-Back Machine, I don't. There's low-medium-high settings for A/C, but I have no control over the fan speed in either the bi-level or defrost settings.
I sent the seller of the Bonneville an email with a couple of questions yesterday. I've yet to receive a response.
When it worked, I liked the way it kept the cabin at temperature. Now that I'm starting to have issues though, I'm wondering how hard it would be to swap it out for the other style.