Well, as I do have quite a bit of experience with some brands of fluoxetine (which is what Prozac is), figured I'd toss in my bit, though it looks like you've already got some useful info here.
Basically what I've found is that it tends to stabilize me on a kind of "Meh, whatever" level. Which is great compared to some lows, but not so much considering it also tends to numb positive emotional reactions. For an everyday example, I recall being very much moved by things like certain pieces of music and so on ("feels", man!) before I got on that stuff, and nowadays it doesn't seem to reach me in quite the same way. I mean, I still like those things. But the sensation is somewhat lacking.
Another thing to consider in regards to these particular chemicals is the likely dampening effect on the "libido", as its known. Which is basically "sex drive", broadly defined. That is, including other aspects of social connectivity besides the obviously sexual in nature. And I'm not just talking about mechanics here, but the relative urgency of these kinds of concerns. It probably won't make a person asexual or anything, just dials down the appeal.
Then there is the question of quitting. I remember when I grew frustrated with the numbing effect and decided to just stop taking the stuff, in the "cold turkey" fashion (at the time I believe I was taking 60 mg of fluoxetine a day, the highest I ever went). I recall feeling better for a few whole weeks and thinking it was obviously the correct thing to do. But then I gradually but quite quickly developed the worst anxiety I have ever experienced, to the point I was pretty much incapacitated. At which point I took up the meds again, and was back to what's normal for me in a few days, as I recall. The doctor who had prescribed the pills was adamant that it was "just the underlying anxiety" that came back without the pills, but another opinion was that it was in fact a straightforward case of withdrawal symptoms. I can only say for sure that it was worse than whatever I felt like before starting the medication, but not sure if it even makes that much of a difference. The point is that it's good to be aware of these things in advance.
Now, I know this all seems somewhat on the negative side, but I'm not trying to dissuade you from seeking the kind of help you may need. It's just some of my personal experiences with a particular psychopharmacological agent, fluoxetine, which is part of the "Selective Serotonin Reuptake Inhibitor" (SSRI) class of medications. Individual experiences do vary, and there are other alternatives. And in any case, untreated depression is pretty awful in itself, so even some negatives are an acceptable tradeoff for improvement. I couldn't say what would have happened over the years if I hadn't started taking it.