The bad thing about the Honda transmission design is that you cannot change the filter without completely tearing the cases apart. I work for a Honda reman shop doing their market analysis, and in-car testing. I have done alot of installs on Accords, TL's, MDX, Odysseys, and Civics, and though none of them are that bad to work on you need the proper equipment for the job. The trans is designed to be dropped out the bottom of the car so a lift, frame jack, and transmission jack are a must to make this job manageable. At the very least I would do a fluid change, and not a flush.