It's not difficult at all. I drained the ATF in my car and replaced the filter at 105,000 with a kit from advance. The kit came with a cheap gasket for the transaxle pan. I recommend reusing the stock gasket. seemed to way more beefy then the replacement for it. Totally worth it though. My shifts were way more smoother after the replaced all of that.
---------- Post added at 09:43 PM ---------- Previous post was at 09:42 PM ----------
Yes that is the only way I have checked the transaxle fluid level