Your best bet is to consult a licensed and qualified professional when it comes to comparing the differences between a condensing unit vs air conditioner. An air conditioner will never, in all probability, cool down your home or your whole home. A condensing unit will only operate as a thermostat to keep the outside temperature in your home as close to what you would like it to be. Also, most condensing units can vary the thermostat speed so that it will not cause the heat to build up inside the home as quickly as the system would like to do.
You should also be aware that the air conditioner can only cool down a single room at a time. If your family is having a party in another room and the temperature outside is too high, your air conditioner will cool off the room and then automatically switch back on once it gets back into the temperature range where you want it to be. That is the only purpose for having an air conditioner, but the problems are far greater than just the single room.
The main problem with the air conditioner is that it can cause allergy-related health problems if they are not cleaned regularly. This is especially true if they have not been cleaned regularly over the years. Of course, they also require the use of electricity so they can’t be run off a battery or an electrical generator. In general, condensing units are the better choice. Of course, it doesn’t hurt to check out your local online company to find out more about both types of air conditioning systems and compare them for yourself.