Mentioning brands and models
I don't want to mention my particular niche, so I'll do my best to ask this. I've found this cheap line of products that has a reputation for being very good for the money and comparable to the big name brands. I've talked to the company and gotten permission to use their images and everything. I want to do a comparison to show how Little Brand X compares to Big Brand Y. Ideally I'd have side-by-side images and descriptions and everything. How can I do all this legally?