RCI Exchange was well worth it.
We arrived 2 hours before the posted check in time, hoping that our 2 bedroom unit would be ready. It was not, so we took an hour to go grocery shopping. Upon our return, the unit was ready. The resort is a short drive from the airport and downtown San Diego, and is located just east of Hotel Circle.
The check in process was fast, and the staff was friendly. Then, you have to go see the Worldmark reps to get your parking pass, which is where they sign you up for a 90 min breakfast meeting to try to sell you a WM timeshare.
Parking was fine, eventhough the resort was sold out during the week that we were there. 
The fitness room had modern equipment. The heated outdoor pool was cool. While the hot tub was hot. There are 2 propane BBQs in each court, and they're cleaned daily. This is the first resort that has included 6 mini packs of spices, which I used to BBQ some wings with garlic powder and pepper. There are 4 computers in the business center with internet access. Otherwise, they charge a daily fee for wifi in your room.
The unit was spacious. A king bed in the master bedroom and 2 twins in the second room. Lots of closet and dresser space. Well appointed kitchen.
The only negative about our unit is that the LCD TVs are only about 22" screens - somewhat disappointing, since most hotels and resorts have 40" TVs.