I got a starter kit at Wild Oats and by halfway through decided that if I was going to expend that much energy tearing, shaking, flushing, etc for every single diaper that I might as well just go ahead and cloth diaper. If you're getting into gDiapers for environmental reasons, think about all the water you're wasting with every single flush, not to mention the material it's made out of, plus the packaging for the expensive inserts. However, if you like them, you can compost them for a garden and that was cool I thought.
They don't seem to be as absorbent as disposable or CDs either. We had several blowouts up the back, though I've NEVER had a blowout with our CDs. Also, They didn't wick well....I had to change my daughter every time she urinated - every hour or less, as opposed to disposables or CD at every two to three.
Once you take the gDipe step, you're alot closer to CD'ing than you think. I actually went from the inserts to chinese prefolds, which, again, I liked better than the inserts, but got to use the adorable covers! Now we're solely using bumGenius dipes, tho.
If you decide you don't like the gDipes, they're easy to recycle to someone else on ebay as they're VERY popular.
Good luck!