Get it if the price is decent. Bridgestone is a Japanese bike company that made some good bikes with good Japanese steel that compares favorably to Reynolds or Columbus. The lower the number the better the bike. I think there may be a RB-0. If so, that is really good and the RB-1 is good, too. In any event, RB-1 are good bikes. I think there is one for sale on e-bay that discusses the type of steel. Also, go to www.sheldonbrown.com and follow the link to japanese bikes. There is a good discussion there.

Good luck.