I'm Fecal Incontinent too and have thought about getting a colostomy as well.
But I decided that diapers would be much better than having a surgical procedure done and having to use another type of bag.
I'm diapered right now. Do I like it? Heck no. But I'll stick with my diapers as I'd rather wear diapers for the rest of my life rather than endure an invasive surgery.
Other than diaper rash I've had no side effects. I'll take my diaper over a colostomy any day. But, this is my decision. You need to decide what is right for you.
I rather not be diapered 24/7, but I consider my Adult Disposable Diapers the lesser of two evils.