You will get folks that will give reviews on one system OR the other, rarely both. Most people who have a long arm have only one, and those that have had more than one in their lives typically upgrade to the same brand. Of those that swap brands, you now need to narrow it down to a person that has (or had) both of the brands and specific machines you are trying to compare.
Try them both out if you have not done this already, in fact try ALL that you can get your hands on. Best bet is a large quilt show. Do your homework first ... make lists of things you like (from their website or brouchures) and things you don't like, and questions you have about both. FEEL them all ... the one that "looks" right might not feel right in your hands (the Innova was not the prettiest long arm on the block but it's the one I fell in love with).
There WILL be compromises. No machine and frame set up is absolutely perfect for every quilter. Decide what features you are willing to live without, and what compromises you are not willing to make. What's MOST important to you.
Last week I made a compromise ... I was seriously waffling about do I need/want a long arm. I had done all the research and picked the machine I liked the best, but still wasn't sure I wanted to take that long arm step, it was a whole lot of money if I decided I didn't like it or couldn't do it. So I compromised ... a very nice used system happened my way and the price was ... unbelievable (almost free). With a very small investment I couldn't go wrong ... if I hated it I KNOW I could sell the setup for twice the price. So that's another thing to think about ... keep your eyes open for used setups and perhaps one will come along that will say "I'm the machine for you".