I guess I should probably go do the Overlord mission as well...
You know, I remember being super happy first time I played ME2 that we had the Hammerhead replacing the Mako. But after playing ME1 a few days ago... I actually quite like the Mako. The issue was never with the Mako itself for me, just the level design for it. If you landed on a random planet there was nothing interesting to do, and if you were using it for a mission the driving section would go on too long. But actually driving around and jumping over rockets with your little thrusters was great fun