I bought this to replace the bridge on my Epiphone SG. It wasn't something I had planned to do but it turned out that one of the saddles on my stock bridge was wobbly. Rather than simply replacing the saddles, I thought I'd upgrade the entire bridge.
The Gotoh proved to be a vast improvement over the stock Epi bridge. It seems of better quality and I would say looks better. There even seems to be slightly greater scope for adjusting the intonation, although, to be fair, this wasn't something I found to be overly limiting on the original bridge.