Played 11-21-11 with my two roommates and some guy named Rory on Friars/Presido ($22 Hot-Deal on GolfNow). Following three consecutive weekends of heavy rain, much of the course was absolutely soaked thanks to the SD river's annual floodings (closing the Missions course), however, casual water rules were in effect so the water was not much of an issue. All the rain led to Cart Path Only, as one would expect. Now to my review:

Experience:
- Round played in 3:36
- Shot an 81 (37/44)
- No cart lady :(
- Good times; Great friends

Greens:
- Soft due to rains
- Rolled about a 10.5-11; fastest I've ever seen at Riverwalk, especially after rain.
- Smooth, but footprints/ballmarks were occasionally issue but no one had played in 2 days b/c of the rain

Fairways:
- Looked fresh from the tee and played the same (except the occasional temporary rain lakes, haha)
- Well defined fairway/rough edge at almost all times

Tees:
- Clean cut with minimal divot damage
- No serious bumps/uneven terrain

Rough:
- Lush, but never too thick that your ball was buried, or thin/bare that you could've just played the fairway. (3-5 inches)

Riverwalk Course Review
San Diego Golf Course Reviews

I didn't notice the six hole issue before I showed up, but it ended up being great because it's $25 for all-day play. The green were in much better condition than expected as well is much of the course. I expect to take advantage of the great rates before they open in a week.