These were recommended on a tile blog for laying wood grain tile planks. This was our first time laying tile in such a large space and these have helped keep the floor level. It has almost dummy-proofed the process for these DIYers
My was delivered very quickly, about five days. There was a little learning curve on how they work and when to install them, which is right away. Seamclips work well. I hope they find away to bring the price down, the more they sale maybe they will, because once you use them you throw them away, it a lot of money, but they do help with lippage.
Excellent product, price a little high.
useful tool but it does not replace the skill set of a qualified tile setter -- good for minor adjustments. Expensive relative to other systems.