Hi,
I have Resomax bidge as well as as tailpiece installed in my Dean Caddy.
Tone-wise I cannot tell you if the bridge itself has made any difference, because at that time along with the bridge I was changing loads of other things such as new stainless steel frets, Buzz Feiten tuning system and the bone nut.
Once the guitar after that massive upgrade came back to me, yes it definitely sounded better, was definitely resonating much much better when unplugged/plunged. Improvement without the doubt.
The bridge itself is good quality, the only thing that is a quite disappointing downside is the fact that the gold finish is getting worn quite quickly (in my case after about the year) and the String Saver coating on the saddles started to come off on certain spots as well!!! But even that that coating works, after installing Resomax String Saver there was no string breakages at the saddles, so I presume it works :D
Other than that really good bridge indeed.