I am pretty much a beginner. I have just had a GX-10 for a few months, and no money to get glass. Actually, no money is not a good excuse. There is really no excuse for that, because with those K-mount on Samsung and Pentax DSLR you can pick up some oldies for not much. The thing is that i was a little doubtful on how much of a difference the lens could make. I have learned about optics (mostly here) and i know all about depth of field and Barrel distortion and CAs and such but I had little troubles believing that on a sunny day at f8 there would be much difference. Anyways, i picked up an old 50mm f1.7 prime which just arrived today and this thing is off the hook!! It is FAST! It is SHARP! The bokeh is BEAUTIFUL! it is everything i've ever dreamed off (well kinda in a way... you know what i mean) I have been playing around my basement all day because it is dark and there is lots of junk down there and i am loving it. A 50mm prime is not very versatil, but i don't think that the zoom lens is going to get back on my camera for a while. This raises the question of why getting the kit lens? If i had bought the body only and the lens i have now i would have saved money. Of course there is lots of things i can't do with this lens. But if i had bought the body only and, say the sigma 17-70mm, it would have added up to only $150 extra. I would have add extra reach and better IQ. If i ever get another normal zoom the kit lens will stay in a box somewhere forever because it is not even worth selling. And this is even true with the Pentax kit lens which is the best kit lens out there. It has to suck owning another of the kit lenses. Anyways, i just wanted to give a little advice to all the people out there who are about to buy their first DSLR. Buy the body only, and get some decent glass, the kit lens is just not worth it on the long term.