I didn't say you couldn't shut off the amp simulations. When I record with my triaxis in the middle of the night I will often run the triaxis into my podxt. The amp sim is then bypassed or set to the tube preamp, and then I'll adjust the cabs and mics till I get the sound I'm looking for. Works well. It has the added effect that with my short board I can change patches on the triaxis, and the podxt shows up as an asio audio interface on my computer.
Thats not why I suggest not using the podxt. He asked if it would work well as an effect processor. I suggested not using it for that. Usually a chain of effects go Wah, footpedals (distortion, noisegate, ect), volume pedal, preamp, delay, reverb in the fx loop, power amp. When using a pod or podxt in the fx loop, any pedal effects you use in the pod comes after the amp's pre. Thats a poor place to put them. Rather than using the tube screamer sim to push the preamp, your just adding an additional level of distortion, a different sound. The wah comes after the preamp which will cause it to be shrill and lifeless. The noise gate will be subject to any preamp noise which could affect when it kicks in, or you'll have to set the threshold higher which will affect your sustain. The delays, reverbs, post preamp compressors, pitch shifting can sound decent with a bit of tweaking. But over all, your using a third or so of a 300 dollar amp simulator, or a 600 dollar amp simulator if you get the podxt pro. And he'd still have to get a short board, long board or a fcb1010 if he wants to swtich patches. And the podxt doesn't have the ability to control the rectifier.
The delays and reverbs can work in front of the amp decently. And it would be a perfect spot for the pedal sims. But any noise created by the pod will be amplified by the amps preamp. If I put my podxt in front of my triaxis, I can clearly hear the digital aliasing present in the pod's signal. It's annoying, and loud. It doesn't show up as a hiss, it sounds like crackling. And it's caused by the digital to analog converters, which come at the end of the pods signal chain so the built in noise gate has no effect on it.
In summery, the pod is poorly designed for either of those uses. I like the podxt. I used the **** out of mine. I still use it even though I've cracked the lcd and the paints chipped to hell. It's my back-up in case something stops working with any of my amps. I use it to practice in the middle of the night. It's just a shitty idea to use it as a multi-effect processor. That comes with a huge IMHO disclaimer.
I stand by what I posted earlier. If mesaman12 is purely worried about getting reverb, harmony, delay, eq and such the G-major is a good choice. It's designed for the fx loop, has an excellent selection of effects, and is midi capable. If he is worried about getting some pedal effects in front of the amp the GCX switch will do that. And will switch the channels of the rectifier.