It sounds like the main down side is a collection area that acts as a funnel where balls tend to gather in one specific area. Several have talked about that point being near a drain. I can agree that I don't care for that, but in general, I think Robert Hunter said it best when he declared short grass to be the best defense. I certainly have no issue with collection areas around great greens like numbers 6 and 9 at Ballybunion, or around greens 3,4, and 14 at County Louth, just to name two courses.
Regarding drains, I learned about a valuable tool that can be employed to minimize the need for drains in certain soils from Jim Wagner of the Hanse team. He described what he called a wick. It's a 10 foot long section of culvert pipe that is covered at each end with heavy screen and then filled with gravel. The pipe is then inserted vertically, or near vertically, into a hole at a low point in the fairway or rough. Water collects and then percolates down into the soil, and down into the wick. No need for a drain cover.