I've got a S/C myself, and I don't have any complaints. Even at altitude it has power to spare.
Today's standard for accelleration is much stronger than it was back in '99-'01. For it's time, it was reasonably fast for a two-ton SUV. By today's standard it's competent, but no speed demon. You can always look for a S/C version. Some member here was going to sell his S/C VX for around 5k as the salt damage was extensive. When you consider that the S/C ran $3500 for just the part, and they are no longer in production, picking up something like this, even if you just use it as a parts vehicle could be a good idea.
You will have tons of torque. It does feel powerful, but that doesn't relate to short quarter mile times. You're not in the same league comparing it to a modern sports compact or crotch rocket.
'01 Kaiser SC'ed VX #0867