Install was a piece of cake (with one minor snag)
My iMac was one of the ones with the Seagate HDD failure problem. The Apple Store already replaced my HDD once so I never paid attention to it again until I went to upgrade to Mavericks. That's when I noticed the S.M.A.R.T. Status was failing again. Of course now I'm beyond the deadline for a free HDD replacement :( When I had the HDD replaced originally it was just before Apple admitted the problem and agreed to replace everyones drives. I had to email and argue to get mine replaced originally but eventually did. I guess they put in another defective drive instead of a newer one. Oh well. I wanted to upgrade to SSD anyway even if my only option was a Hybrid drive.
The repair was incredibly simple and went very well. I didn't have the official suction cups to remove the glass but did have some 2" window suction cups from holiday decorations that worked rather well. I got the new drive installed and Mavericks installed from an Install OS X USB Stick I made prior to shut down.
It wasn't until after the install that I noticed I had no bluetooth. Apparently at sometime during the install (my best guess is Step 4) I either hooked the blue bluetooth antenna cable and ripped it out of the incredibly tiny coax connector or knocked it out somehow during monitor reinstallation. That sucks but a replacement was found on ebay for $13 and will be here in a few days. It's right at the top left and I've already found the guide to replacing it so it should be another piece of cake install :)
On or prior to Step 4 I HIGHLY recommend a warning and picture showing the blue cable and where it is with the warning to be sure to avoid snagging it. It's a seriously tiny coax cable and impossible to reattach (trust me, I tried repeatedly)