The first thing to keep in mind here is there are some very opinionated people on this board who feel strongly about their choice in dive gear. No matter what you use, there will be someone on here who will attempt to disuade you from using it despite any knowledge of your situation or needs. I made the mistake of reading this board too much before buying gear and partially ended up with things I don't want/need, imo. I've found its much better to solicit the advice of those who know you and dive with you if possible and a good, honest LDS is invaluable for gear advice as well.
As far as the the integrated octo, I've recently just started using one. After reading all the detractors here go on and on about the dangers of an integrated octo, I dove for the last year with a standard octo despite wanting an integrated one. I just recently installed an Atomic SS1 and so far in the pool testing, I have really enjoyed it. It breathes MUCH better than my old octo and nearly as good as my primary. So much so that I am thinking about going to the Atomic B2 as my primary.
After doing a few out of air practices in the pool with my buddy, I don't see what a lot of the concern is around the inflator octos. But I am going to reserve final judgement until I can get in some deeper water and throughly practice with it. But at this point, I am feeling optimistic about it.
Hope this helps.