I've been on Lybalvi for 3 weeks. It feels like a less sedating, and less depressing, and less hungry version of Zyprexa. The first day I took it, I had horrible side effects. And felt drowsy, nausea, weird changes in my vision when it came to color perception. And the worst of all, my body felt floaty. And not the "I'm high" floaty, it's the floaty feeling you get when you sleep on your hand all night except around your whole body. That lasted maybe 3-4 days. But after that, I feel great. It's the only antipsychotic for me that lasts how long they're supposed to(24 hours). So I can take it at 7pm, go to sleep, and it'll last until my next dose with no issue. 

Over the span of a few weeks, delusions have nearly disappeared. I still hear voices(rarely) but now can acknowledge they're not real. And I don't look or act high as shit. I can bike, eat without going to munchtown, and sleep 9 hours and feel perfectly rested the next day.  

If you're very concerned about weight gain from Zyprexa, this can definitely help. I have gained only 3 pounds. When on normal Zyprexa, after a month I gained maybe 20 pounds. Gaining that much weight so quickly can make you extremely depressed. I feel much happier on this medication.