I've got a property that I manage who is considering installing a new, top-of-the-line Micro Spray irrigation system. I have 3 other bids that have not made that suggestion. Is Micro-Spray really the way to go? The property is on a slope, with mostly creeping vines, shaped shrubs, and small flower beds in front of the 24 units. What are the positives & drawbacks to this kind of system?