I've just started playing it again after buying it a year and a half ago.
Having quite some fun! But your comments are valid. With a bit more fixing and polish I think this game can have some more years of life in it.
The control dial confuses me - I suppose it works well with a game controller, but I'm playing with mouse and keyboard. In the heat of a situation I sometimes accidentally launch all eight vehicles and they get themselves shot, haha. Reload from latest save is my escape.
Calmly driving around, picking of objectives one by one is what I like. I have to be careful to prevent accidentally having a walrus run of on its own. So far, a good game! With potential to be even better!