The newer Legacy does not require the removal of the brake caliper or rotor to swap out the struts. One thing not mentioned was an "O" ratchet set to get the top bolt off of the fronts. A lot of the guys say air tools let you just "zip" it off, but I did the job without the aid of the compressor. The "O" ratchet allows an allen wrench to pass through the ratchet/socket to hold the bolt while the nut is ratcheted loose The spring compressor was a loaner from AutoZone for a $40 deposit. You should also have a Torque wrench. I have a 1/2" Micro-Torque that filled the bill.
Yep, it took me about 8 hours working alone. This was a first time for me so I was trying to be very deliberate and careful. Which certainly pays off when working alone. As stated B4 the one "DOH!" was forgetting to take the rubber spring seats out of the old rear struts and installing them in the new. The fronts don't have any, but I got one rear completely installed and torqued in place when I realized my mistake and had to start all over again. About 1 hour lost. I pulled the brake hoses so a lengthy brake bleed session followed, as the master cylinder drained completely despite tying the hoses up and wrapping with rags. I'm sure I could probably do it again in half the time.
The front springs seemed loose and I was concerned, as they could be wiggled around in the spring seat when completely unloaded, but after being being run a few miles the strut no longer extends that far with the wheel off the ground after I jacked it up to pull the wheels and inner fenders to do the side-markers. That's about all I can think of to add to L777's directions. Please feel free to e-mail me with any other concerns or questions.