I think Technique Tuesday tiles are wonderful. I'll choose them over brown or gray chipboard any day. The most important reason is that they are an ivory color & accept ink, paint, & even chalk so easily. The color comes out true, not altered by the darkness of regular chipboard. I also like how smooth the edges of the shapes are. They don't have the little knob-like pieces where the shape was attached to the surrounding tile. Even though the tiles are sturdy, they do cut easily. For instance, I cut the scallop circle into 2 pieces, to attach each piece to a separate page. Finally, I think they are a good buy because you get so many pieces in a package.
I love Technique Tiles even more now. I used and aqua painter and my chalks to "paint" the tiles before stamping a design on them and the color was so beautiful! You can't get that with regular chipboard, it's too dark. The creamy white of these tiles make them perfect for chalks and inks.