I hated them.
When I was first erroneously diagnosed with bipolar in the late nineties, my psychiatrist's way was to treat with antipsychotics before trying antiepileptics or lithium. Her reasoning was that antipsychotics don't require regular bloodwork to check levels. At the time, lamotrigine was not yet popularly prescribed, it never even came up. I tried 4 or 5 antipsychotics before she moved on to other meds.
On one antipsychotic, I was driving down the interstate and zoned out, when I came back to full awareness I was 3 or 4 exits past the one I needed, and it was hard to reorientate. Quite scary.
On another, I would sit at my desk at work and just stare at my hands on my desk, it was really hard to function.
A few years ago, a doc talked me into putting me on Seroquel, I only took it for a few weeks. Not only did it not make a helpful difference, I briefly developed mild tardive dyskinesia.
From my own experiences as well as those of others, I think antipsychotics are way overprescribed and for most do more harm than good. Docs ostensibly like them because they work so quickly, but if one isn't experiencing true psychosis, it seems to me lazy and abusive to treat with them, especially for non-organic conditions like PTSD and so-called personality disorders, as well as for bipolar.