Top quality, as should be expected from Gotoh. Solid feel, smooth action, and certainly a top contender for replacing worn out stock parts. I tend to find these kinds of finishes to be a little darker than expected, more of a classy black than just a darker tinted chrome.
Finding these particular Gibson style versions in cosmo black though is tricky enough, let alone for the reasonable price offered by Thomann! - given how many outlets stock bridge, and tail piece parts in this colour, it seems surprising how many ignore having the matching machine heads, and those that do often charge well over the odds. Worth bearing in mind if you're looking to replace hardware in one go.