Went to watch the A's Spring Training. The stadium isn't state of the art but it's clean and well kept. There were never more than a few people in line at the rest room.
Parking was $5 and there was plenty of it. Don't make the mistake of eating before you get there. It seemed pricey but there was a wide range of baseballey food options (i.e. hot dogs, hamburgers, BBQ, Cold Stone-like ice cream). My cotton candy cost $6 but it lasted me for two days. Lots of A's memorabilia on sale, and the sales people were very polite.
Make sure to bring a hat. The sun can be very hot.
An obnoxious man behind me kept commenting on how the stadium that the Angels do their training in is so much better. He might just be an A-hole though.