Here's an old discussion, we talked about in the past.
We had a lot of disagreements about which way is better: tile under cabinets or right to the cabinets.
Last week I faced an old kitchen with a leaky dishwasher. The problem: Tiles were set up to the cabinets. The tile layer set the 6"x16" tiles over 3/4" cement and sand mix, and I needed to get the dishwasher out over that...Why did he do this? nobody knows, not even the homeowner.
I had to break off 5 tiles, the 3/4" base under those tiles to get the dishwasher out. Replace the leaky discharge hose. Then put the dishwasher back in place, pour some new base material and retile (luckily the homeowner had some spare tiles).
A $200 quick job became a $800 long job in a hurry.