This is what MicroAir states about it:

"EasyStart™ - The most advanced & effective soft starter for all A/C applications

EasyStart™ is a one-of-a-kind, custom-developed soft starter for single-phase motors. It employs a 4-part start ramp sequence that is self-optimizing, resulting in the lowest possible start-up current. EasyStart can deliver 65-75% start current reduction as compared to a compressor's LRA (locked-rotor amperage). EasyStart is the perfect solution that allows an air conditioner or refrigeration compressor to operate on a generator, inverter, or limited utility power when it would otherwise not have functioned. It can also be applied to air compressor and fluid pump motors."

Edit:  Does it matter that you installed the EasyStart? Depends. If you have a large enough generator to run without it or you always have a shore power connection of sufficient amperage, then it might not be needed except to make the start of the compressor much quieter. If you have a generator that is marginal for running the AC or if you want to run off of an inverter (more for large RVs with huge battery banks and solar panel arrays), then yes, it was likely well worth it.

I did not get ours uninstalled from the RPod when we traded it. I will likely be installing one in our Grey Wolf unless I find that the new units have the equivalent installed by the manufacturer.