A 1.5m dish is large enough for EME on 3cm, even 23cm with WSJT. I am hoping to do the same with my 2.4m dish but the real difficulty is finding an azimuth bearing as it is very heavy. For terrestrial work unless you are on a hillside with a clear tree free view of the horizon it is probably to low.
Iphones and photos the wrong way up is a common issue.
It appears to be working well on 3.7GHz, comparing favourably with G4CBW's 3.0m.