Sybase as database for BW

Dear experts,

Does any of you have experience with using Sybase as a database for BW?

I am at a customer site, where they are currently using Oracle for one BODI "dataware house" and Sybase for another BODI installation. They are now considering BW and wonder if they will use Sybase or Oracle.. Since Sybase now is an SAP product they are strongly considering that. I have only worked with BW on Oracle database, so I hope you experts can give me some directions=)

Regards Silje