Though it did take a couple of weeks to receive the tiles, they were relatively easy to install and we're very happy with the results.  The only "little" problem was the 3" gap from the top of the first level of tile to the bottom of the upper cabinets.  Because the automatic calculation didn't take that area into account, I didn't have enough tiles to do it "properly" and so I had to be creative in order to fill in that gap while still keeping a believable pattern.  It worked out ok, but took more time than the original level did. It looks very good and I'm happy that the colours & pattern don't look too busy next to the countertops.