I wondered about viovio too....they had wanted me to make QP's for them, but I ended up not doing it because of time constraints and also because after going over their site, it seems that you have to upload LO's in PDF format. I wondered, how many people really use this? Waiting for a big stack of 12x12 300 dpi files to upload, PLUS converting them all to PDF format before that? That was a major turn off for me, but I've seen more people talking about them now, all good things...so maybe it's worth a shot.
I personally give RAVE reviews to scrapping simply. I just got my first order from them and it was GORGEOUS. They have different kinds of paper-I chose the linen paper. It's a bit thinner than cardstock with a lovely texture. The colors were vibrant and looked just as pretty on paper as it did on my computer! Maybe I should get around to taking a close up pic of the paper quality I got from them...I do think they have some on their site though too : )