No I don't work for any of the manufacturers, gigabyte, asustek, intel, amd, any of them. I've owned a number of different boards, intel, various oem boards, biostar, aopen. My last several builds have been gigabyte and I've been pleased with their products. They get involved in the overclocking community and competitions, just as other oems like asus does. There's no evidence that points to the claims made to be a frequent problem, plenty of people using samsung ssd's with gigabyte boards and plenty of people who have had decent customer service. No real evidence their video cards are junk either.
Considering you're having so many issues maybe there's another explanation for things like the samsung ssd not working. Pc's can be fickle and if using the wrong settings or any number of possibilities hardware may not work properly with one another. It just becomes very difficult to suddenly come up with a bunch of claims with no further information against a brand that's one of the better and well liked brands in the industry in an attempt to ward people off.
No manufacturer of any component gets to where they are based on color schemes or marketing gimmicks. Enthusiasts and professional users and reviewers will quickly sort that out and it's evident among many of the newcomers to the market. Some aren't brand new but a new(er) presence to the world market, companies like fractal design, bequiet, cryorig. They're well regarded and they had to compete and earn that with quality products. Those who sell overpriced or questionable products quickly get a reputation for that as well. They won't make one or two good products then ride on that success, they depend upon continued success to stay where they are.
If gigabyte or asus or anyone else suddenly started flooding the market with problematic or shoddy equipment it would be front page news. People are highly critical of pc gear, especially enthusiasts and with the internet capable of making headlines near instantly it wouldn't take long. I'm sure there are company reps from various brands in these forums, I know they're in other forums. Asus, phanteks, gigabyte, g.skill and I'm sure plenty of others and they identify themselves as company reps usually with a text indicator or company logo by their name. Many are quite involved with the tech community and it's one of the best ways for them to interact with users and customers in addition to their support lines. A lot of people who have problems will post on a forum and not bother calling tech support or contacting the company directly. I give the companies credit for having folks involved with the various forums trying to assist and get 'into the mix' rather than just man a phone desk.