Need information on atmos

Looking at getting 4 ceiling speakers for atmos. My fronts are totem. Has anyone ever listened or used totem kin ceiling speakers.  And are they worth the cost.  I also thought about def tech. I spoke with someone about atmos and they said dont spend much on ceiling speakers because not much info up there.  But my thought process tells me u want that extra detail of rain, helicopters,  planes,  swaying trees, etc.... to add to the realism.  So any help will be appreciated.  Speaker suggestions also.  Is it worth spending a 1k or more for ceiling, not including amp.  And before anyone ask, yes I have searched the forums and not having much luck. Also new speaker tech changes. Ty Pete