lexicon does have a great lushness to it.
one of the gforce's greatest features imo is the envelope and LFO modifier section.
it's tricky to get down initially, but once you do, it really allows you to mold the way the effects react in a more human dynamic way.
particularly the ducking stuff, and the way you can shape/draw the slope of the decays/mix level with that cool edit window, which tracks your input level at the high/mid/low points, and lets you bend the tracking slope which controls a particular effect, relative to the input level (in the envelope modifier mode)
so let's say when you hit the device hard with a strong note, you program the delay/verb level to drop down to zero to reduce clutter, then as the note is held and the input level begins to fade, you can increase the amount of delay/verb quickly, if you make the tracking slope rise steeply on the graphic window, by programming a high number (60-80%) at the mid point control, or shallow/subtle increase to the mid point of your note's volume with a lower number (30-40%) on the mid point control;
the gforce "watches" your input level like a hawk, visually represented as a cursor on the LCD window, sliding right to left under the graphing window, and even lets you select the "glide time" of the tracking of the note!
-then you can continuously make the effect get stronger as the original note dies, like a conventional ducking envelope, by programming a high number (90-100%) to the low input measurement
OR
you can make the effect swell a little more and *then* taper away more naturally with the dying note by telling the gforce to track again with the note, by actually "bending" the tracking wave (which represents the fx level) down to follow the input level via a slope control option, which is like a fine tuner for the whole shebang.
the other options are choosing internal LFO generators to modify effects, which create a more random unpredictable motion to the sounds, or programming external modifiers like expression pedals to your effects.
it even has a jack on the back which you can plug an expression pedal or momentary contact pedal into, to control tap tempo, or wah, or tuner, etc...
confusing? well it is until you stare like a goldfish at that LCD for a few trillion hours spinning the magic knob with the manual in your lap...then it is your friend.