It really depends on the compressor. Some compressors rebuild well and some don't. For those that do, then it has to do with the quality of work performed by the rebuilder.

Your best bet is ALWAYS a new compressor after a THOROUGH flush if it failed catastrophically.

In the case of a LEAKING compressor, you should first determine exactly where it is leaking and see if you can fix it. You can replace the shaft seal and you can replace the sensor seal. These would be your most common leaks and are repairable.

Good luck,