I really enjoyed the HK-51 questing, and plan to do it again with my several alts. I thought it was really well implemented all around, and particularly liked the homage to KOTOR's undersea quest while doing the Theoretika portion.
The begining and ending of the quest where nicely done. The scaning for parts and the way the scanning was done, where mind numbingly bad. A couple of changes and ti wouldn't be so bad. A better decription of where to look for the parts, maybe makeing the area on your map. A dircetion indicator on the scanner. Just some little things that woudl make it a whole heck of a lot better. As it is now, I have no desire to do the quest chain again. No matter how good the companion is. But this is jus my thought so that it as you will.