Installed the sway bar on Saturday. Took me about two hours, but about an hour of that was messing with my new jack (the yellow Craftsman is definitely the way to go

).
Some tips:
1. You can do the install without taking the trunk off, just remove the two bottom bolts and tilt the trunk. HOWEVER, it helps to have a second pair of hands to tilt the trunk for 2-3 minutes when you're putting the new bar on.
2. If it's the first time you're taking off those bolts, you'll probably need some WD-40 to get them off, a few of those bolts felt *welded* on, they were so tight. It's a workout under the Spyder, that's for sure.
3. Own a Spyder? Invest in a ratchet set (also find a set of torx screw sockets). The ratchet is so handy, I keep it with the stock tool set.
4. For the swaybar install, I found it much easier to use *two* 13mm wrenches simultaneously to loosen/tighten the frame bolts.
5. Be patient!
My verdict? Actually, perhaps it was all the hype, but it wasn't as earth-shattering an upgrade as I expected. It definitely helps with the roll, but corners are still corners, i.e. I didn't find myself able to take corners all that much faster than I did before. That said, the swaybar dramatically helps in swerve situations-- dodging potholes, manholes, etc.
Definitely looking forward to upgrading the shocks at some point. But this was cheaper, and as long as you have a jack/jackstands, it's an easy install.