Concurrent Processing

[Twix]

Has anyone done concurrent processing? Is it advisable to avail of this, or is it better to wait for your LMO before you could apply for a work permit?
To decrease wait times, CIC could now process WP without a positive LMO yet. Granted, you have to include a letter stating that you would want concurrent processing and that a positive LMO is required before you could be given a work permit. You also have to include the LMO application of your employer.