These tiles are amazing! They completely transformed my bathroom into a hip spa suite. They took a solid 2-3 hours to install, going slow and steady. Definitely found a contour gauge helpful and used paper shopping bags to cut templates before cutting the tile. And yes, some of the tiles are rough to match up but lay them out in advance, take the time to match the best sides, and I swear you won't be able to see the variations when you're done. PS: If you're using these in a wet area (bath/laundry/kitchen), don't forget to caulk! Caulking is also forgiving against the walls, too. Doing this again, I would use a secondary adhesive as well. They're lifting a bit and I'm gradually adding a bit of adhesive as I see them come up. With the adhesive, they're immovable.