I am on a low dose of Olanzapine, 5ml,and far from being a "nasty antipsychotic",it has given me my life back in terms of reduced anxiety.
I take it of a night with mirtazapine,and am on venlafaxine xl of a morning.
The mirt will be tapered slowly in the future.
Everyone is different, and I don't think its very useful to label something in that way.
I have also lost about 2 stone in weight whilst I've been on the ven and mirt,and have not gained any more whilst the Olanzapine has been added.
I've done it by eating healthy.I also have a good nights sleep,and wake really refreshed.
Some of these meds are lifesavers to people,others won't get on with them,that's how it can be with these things.