I print my pages as 12x12's and slip them into photo albums. I don't scrap chronologically so this makes my life a little easier. I have printed at several places. I was not happy with sbtoshare or mypictales, at ALL. A lot of people are very happy with them but I didn't feel the lower price was worth the drop in quality. Maybe I'm too picky but I work hard on those pages, I won't settle for less. Scrapping Simply has very reasonable prices (.99 for 8x8 and 1.99 for 12x12)and a flat $5.00 shipping fee. Their customer service is top notch and for that alone I highly recommend them. But if you're an edge scrapper you have to be willing to bring your design in about 1/4 and inch or create a bleed once you've finished. Again, this is pickiness on my part, it doesn't bother most people. For excellent quality and not having to worry about cropping/bleed I go with Scrapbook Pictures. Their prices are competative (1.99 for 8x8 and 3.49 for 12x12) with a flat shipping fee of $2.00. The regularly have sales and not having to worry about my edges getting cropped makes the sales worth waiting for.
So in summery if I need great quality, fast, inexpensive and am not concerned about my edges=Scrapping Simply.
If I've scrapped to the edge (which I often do) and don't want to mess with bleed, need excellent quality, fast, reasonable cost I will save them up for a sale and go with Scrapbook Pictures.