Spark plug change out on a 2010+ 2.5i EJ series doesn't look bad at all. You can easily reach down and get ahold of each coil-over. If you can get you hand in to remove each coil, spark plugs should be fairly easy to change.
Thing is, at ~60K miles & ~3yrs, those platinum plugs will look new yet. You could always pull them to inspect, apply some never-seize and reinstall, but if you go through all that, you might as well spend the $30-40 on new plugs.
I'm a believer in applying never-seize to spark plug threads and some silicone grease to the coil boot. Next owner will LOVE you.
Joel