Update time!
I hate this thing. For the last few weeks, it was just clutch slippage. I knew that, and I should have fixed it sooner. But I didn't. Time to pay the price. =[ First car, lesson learned.
But I officially hate this bipolar tranny. I drove it yesterday, and it was FINE. Today, and it was fine. I took it to a transmission shop, and the guy first sniffed the dipstick, and his response was "Mmmm, I just love the smell of burnt clutch in an automatic..."
He drove it, and he said that he noticed very sluggish shifts, very late shifts. It wouldn't slip for him at all, and he was driving it harder than I have since it started. Ran the OBD scanner, came up with two codes that lead to bad electrical signals for first and second gear (where the slipping occurred most often - which would explain reverse as well).
Right now he's running some pressure checks, and he's changing the fluid and filter for me. (for free, this shop is amazing). He's going to trace everything out of my PCM to check for anything that would cause the shift issues or solenoid problems. He said that he's 90% sure it's an electrical problem that's causing the clutch to slip, which I'm pulling for. All I'd need is a rebuild kit and maybe a solenoid.
Let's hope for the best.
Edit:
Just got off the phone. He told me that all the solenoids were fine, everything electrical was perfect, so it's internal. He wanted me to do an overhaul, $1300. NO WAY.
I'll go pick it up later and find out for sure what it needs. If I can just rebuild it myself with a kit, fine. But it'll cost $300 for him to just drop the transmission out to tell me what needs replaced. Fucking shit mongrel.