First of all, this is a very well-made product. They look really good in close inspection and I don't have any reason to doubt their robustness. They are also true bolt-on sliders and everything lined up perfectly... so installation was a breeze. And I think they look fantastic!

I ordered on 7/27 and they said lead time was 3 to 5 weeks for powdercoated, DOM sliders. The sliders arrived on Saturday (8/29)... so they arrived at just under 5 weeks.

All in all, a good ordering experience even though they failed to answer my question I sent about a week ago asking if they had a more concrete ETA (since I was contemplating on taking a weekend trip--glad I didn't go!). The sliders arrived within their initial estimated lead time!