When building our home seven years ago, we selected 2 Delta ARA 3567-MPU-DST units for our master bathroom.  They both have horrible streams, and most of the time double streams of a small amount of water that splatters all over the place. We hired a professional plumber to fix them but they were unable to do so!!  This unit should be pulled from your inventory and redesigned.  We would like Delta to replace both of them free of charge as this seems to be a common complaint and reoccurring issue. 
I would greatly appreciate your assistance!