I'm also disappointed by edit routed traces. Esp. when I move a routed VIA the neighbour segments don't move together and it makes total mess. Also selection of track segments is often slowered by selection menus. Partial unrouting is problematic too, In OrCAD I just click one segment and pressed DEL one or more time and it deleted segment by segment until reaching the pad and I didn't need to click again again... I hope I will found as good way in Altium or does all other users only autorouters?