I've got a Stage 1 deuce and love it's sound with all my guitars. I punch it with either a Tube Screamer or a MXR Zakk Wylde Overdrive, depending on the band and guitar, and it really comes alive. Cleans are awesome as well. I'm running it through a custom 8ohm twin 12" (v30) cabinet that I built to the same inside dimensions as the Roadster Combo except the cabinet is made of pine, painted and clear coated with several coats of polycrylic.
I don't, however, use the fluid drive much at all and I've found that the bass and midrange on the tone stack offer very little adjustability in comparison to Dual Recs, Marks, Nomads, the DC 30, or my '73 Marshall Superlead. With regard to Fluid Drive, it seems to muddy up rather than ramp up. I'm not sure, but I think there were revisions to the tone stack and possibly the fluid drive in the Stage II. Since I haven't done any work to the amp, I really haven't researched later models.
Stacked against my '72 Marshall Superlead 100, the Stiletto just ain't a Marshall, but in a good way. Especially mine, because I've done a One Wire Mod with a blend control to the original Marshall circuit. That being said, it is more comparable with British sounding amps and when you turn the Loop switch to OUT it gets even better. If you are an effects loop user, a Zoom G3 and TC Electronics Nova Delay (in that order) really compliment the amp well.
Two years ago a producer in North Jersey listened our own studio recordings of the amp with FX loop out, mxr Zakk OD, and twin cab and thought it was a custom rig while listening to work we later continued with him. Most of the amps he has in front of are either Fenders, Dual Recs, Vox, or Marshall so I was suprised, but it was a clearly set us apart guitar wise. It's got a harmonically rich feedback onstage when you get the pickups right on top of the speakers as well.
Recently, I almost parted with the amp as part of a trade for a Mark V and was sick the whole time. As it turns out, the deal fell through and the amp came back home with me. I don't think I'll be looking to trade it again any time soon.
Good luck with the amp!