Check out this thread:
https://www.airwarriors.com/communi...are-stories-of-the-swo-community-valid.32623/
Also check this forum devoted to SWOs:
http://www.sailorbob.com/phpbb/index.php
Maybe some SWOs here can chime in. I know quite a bit about the positives/negatives from SWOs I've been close with, but it's best you hear it from people who have experienced it. I'll just say one thing: you're going to spend a lot of time underway.
For reference, the last board had
60 selects from 202 applicants. The community gets most of its people via NROTC/USNA and STA-21. From the community brief, OCS makes up 25% of commissions. If you get through NROTC/USNA and your major/GPA and other qualifiers aren't suitable for anything in particular, you get thrown in as an SWO since you have a 4 year commitment and they have to put you somewhere. This and other factors make it a bit of an uphill battle for OCS applicants.