I used these tiles for a kitchen backsplash.  They are very nice looking and clean far better than normal tile and grout, in that grout itself doesn't clean well.  However, the "grout" on these tiles are just part of the tile pad, which means cleaning is a breeze.  Usually with home products with a sticky back you would encounter a problem wherein once you stick the item onto something it will not come off, or doing so damages the item.  That isn't the case with these.  You do have to make sure tiles line up correctly, and the stickiness is forgiving enough to allow you to lightly place before fully compressing onto the surface.  I was also concerned about seems, especially on the "grout" portion.  However, these are nearly invisible.  Cutting is easy but make sure you have a sharp knife and some pressure.  I'm quite happy with the purchase.  Now I'll have to wait and see how they all hold up over the next years.