I'm the opposite of Becky (so far) in that my second knee was less involved surgically and the recovery has been, well...I don't want to say easier, but kind of easier. My quad was dead, dead, dead on my left. It was almost two months before I could reliably do a seated leg extension on that side. Almost a month before I could do a straight leg lift, an inch off the table. I needed e-stim to wake up the muscle. This leg, I had quad control the day of surgery. So I'm already able to lift the leg into bed without an assist, slide it off the side of the bed without worrying about Gravity yanking it down painfully... stuff like that.
All that said,mentally the 2nd surgery has been harder. I've had more blues, more frustration with being helpless, snapping more at my family, I'm just over "recovery".
But at 2w, I'm over here buying myslef a bike and thinking ahead to getting my life back in order, no more surgery looming over me menacingly. So there's that. And once I get these kids back in school, I'm looking forward to working on my phase back to work plan.