I've got two Chambers RDSM guns (both Staccatos). I like the system, however my experience is that you will need a taller front sight than your gun came with. I ended up with .220" fronts on both of mine (P and C2) to get them in the neighborhood. The factory .170" (I think) fronts were far too short. That said, replacement fronts from Dawson are something like $25 in plain black, and you could order it and send it to the smith with your slide and probably have it installed at no charge if you weren't equipped to do it yourself.
Both of mine are RMR cut, so you may have better luck with the 507K/EPS version, however that would depend on their selected rear sight height, obviously.