Without getting into agency bashing, I can say that I sat in on my daughter's OW class through SSI and was appalled when comparing it to my NAUI experience. Like all dive training, I'm sure it depends mostly on the instructor. Somehow I find it hard to believe that PADI would have an easier course than SSI.Jeez, just how rigid/intense is SSI certification? I got OW certified in 2 weekends (4 days) with SDI. That includes classroom/book work, pool time, and certification dives.
To have been involved in getting OW cert for over half a year seems way excessive.
OP: If you don't ever want to go deeper than 10' are you sure you really want to get certified to dive? I have the impression someone must be pushing you to do it, and you don't really want to.