I have raced several times at Buttonwillow. It is hard to say whether or not you will like it. Some people really like it because it is a nice layout and has a good mix of both slow and fast corners. Meanwhile, others hate it because the surface is well worn and quite bumpy and slick in some areas. I say go for it! Come to your own conclusion. For me, any time on a race track is a good time.
Just for reference, a good laptime it to get under two minutes. My best there was 1:54.3's. However, I heard a rumor some parts were repaved and people are running in the 52's, but don't know for sure.
Good luck!
Chris....
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