My 11-year-old son and I knocked these out today in about two hours from start to finish. It was pretty easy. Getting the engine to line up with the passenger side mount when lowering it back down was a little tricky, but we got it lined up after about the fifth try. IT WAS TOTALLY WORTH IT. The horrible vibration and shuddering I had on acceleration after having the torque converter replaced is almost completely gone. The old mounts didn't actually look that bad. The transaxle mount looked in worse shape, with dry-rotted rubber.
Also: 15mm offset wrench makes this job possible. Got a metric set of offset wrenches at Harbor Freight for $16.