I have to say I was hesitant to recommend the SLX immediately after my issue with the coating. However, my replacement has seen even more use over a longer period of time than the first one, with better and stickier material, and the coating is still holding up well. I feel comfortable recommending it based on the performance of my replacement. The customer service was also top notch.
The only issue I have with the SLX is that it doesn't deal with the ultra sticky 26%+ stuff I get as well as the Ti Space Case does. I prefer the grind quality and feel/design of the SLX, but when it locks up it is frustrating.
These are extreme edge cases though. Many people will probably never have an SLX stick, or at least it will take quite some time. And it's still probably the second best after the Ti Space Case in regards to sticking, as far as my limited reading of reviews of various grinders goes.
The SLX is probably the best as far as kief sticking to the grinder, or as I like to call it "static cling". The Ti Space Case collects a bit of kief in the top two compartments. The SLX collects virtually zero kief anywhere except the bottom kief chamber, and of course the screen itself does get clogged over time just like any other screen. Kief just slides off that coating though, it's kind of beautiful how it doesn't really cling to the top two pieces at all.
If using it as a three piece I would even venture to guess that the SLX will give a bump to the potency of your material as the trichomes will stick to the plant matter instead of your grinder. That's just a hypothesis though, don't quote me on that. Unless I'm right lol...