to Dr Roye's patients-question

Hi everyone, I have one simple question for any of Dr. Royes patients.  Have any of you had the DS(duodenal switch, or BPD) WLS?  If so I would like to know your opinion on this surgery.  The advantages/disavantages. If anyone else in RI has had this surgery please give me any info you can on the same question above.  I would like as much personal opinions and info as I can get from Rhode Islanders. Thanks to all who can help.