Recently bought a 1Hp Panasonic window type inverter unit for my kids room.
No problems naman and just had our regular boy and office helpers install the unit.
same size as a previously old non inverter carrier aircon unit.

The only thing i noticed is that for less than a month ang bilis kumapal nung dumi nang filter niya. compared to the older carrier Aircon but i think it might be a good thing since it seems to filter out a lot of dust in the room.