To be totally honest, the genre started off on a bad foot. Darkroom Familia's quality was awful but it obviously had its niche already because the subject matter. The quality has gotten better in terms of sound for a lot of rappers but some are worse which is hard to believe. Not to mention that most of the Norteno rappers are some of the worst I've ever heard in my life. There's no substance to it. I can guess half of the words they were going to use in their rhymes as they're setting up what they are about to say, or they surprise me by saying something way worse than the nursery rhyme I thought they were going to say.
East Co Co was putting it down, but even listening to a lot of that stuff now, it's crazy outdated. Woodie was getting more into political/real life writing more than ever it seemed like before his death. He was maturing as an artist. I wish more rappers in general would do the same.