On gate controls (assuming yours are like mine, though I have a single code for both open and close), I found a couple things other might find useful:

1) The range seems very limited. I must be within two car-lengths of the gate (ususally more like one) to activate it. Thus I end up waiting, instead of hitting it half a block away and having it open when I get there.

2) Unlike my remote for the gate, I have to hold the button on the transceiver until it opens (not just push and release).

3) I also have to time it. With one code both open and closed, and needing to keep the button depressed, if I hold it too long I will open the gate about a foot / foot-and-a-half and then shut it again.

All in all, still better than clunkly, unmatched remote attached to the visor.