While these might seem like a sizable investment, they are so very worth it. I have been comparing all different brands that make something like this and trying to find the best value, without sacrificing quality for the longevity of the material, and while still having enough aesthetic choices to be able to get a couple of sets to put in different areas and match the decor. I didn't want to have to jump between brands for different areas, it would rather get them all at once from the same manufacturer so that I know they could be interchanged, and should last about the same amount of time, and we'll have the same finish and dimensions and have a good flow even if they are different colors and different areas.Anyway I came across this listing and decided to give it a shot. It's fairly in the middle of the range of what I was finding between all of the other options, and unlike a lot of the other options, this brand seems to carry a wider range of colors / finishes, so ultimately that's what led me to this decision to pick this one specifically.They arrived very securely with lots of foam to protect them from the sides. They fit together easily. There are little locking mechanisms on all four sides, and they work very easily together. I am using them in an alternating pattern where there's a horizontal Windex to a vertical one, then followed again by another horizontal, and so forth so it kind of is a checkerboard pattern of different vertical and horizontal lines. I find that way the most aesthetically pleasing personally.So you just basically slide the sides together like a puzzle piece and then if they shift, they all shift together. So one won't separate by stepping on it it's sliding it to the side. But they can't be lifted up and out of place. So if you don't want that to happen, then you're going to have to find a way to keep them firmly on the subsurface. Otherwise most people do want them to be able to lift up and out in case they have to replace a single piece, or clean a spill under it of something that's sticky or something that wouldn't be easy to hose off. So I like the fact that I could lift one up and out and then put another one down into its place securely, without having to risk breaking anything or prying anything up and damage any of the connection pieces.The gaps between the wood slats and in between the tiles is amazing for drainage. I got This set specifically and this color pattern because it matches the little spa area I'm trying to create. I took an old greenhouse and I'm turning it into a sauna room with a hot tub and Steam feature. And some of the shelving that I'm going to relocate out there is this exact warm shade of teak/bamboo colorway, so this is why I chose this hue for that area.And because there's a hot tub, the drainage slats are absolutely essential. It means I can walk comfortably barefoot and the wood slats are nicely textured so it's not a slipping hazard, but any water that's dripping off of me travels down through the cracks and doesn't stay on the surface which is amazing.These appear to be very well made. The coloration is even. The woodgrain texture looks nice. They are well attached to the plastic grid attachment base. And even when dropping one, nothing got knocked loose or anything like that. And while walking on them you can tell they don't flex or have any cracking sounds or anything, so they will hold up very well too traffic areas where people will be walking on them and maybe placing something heavy like a hot tub or something on them as well.Anyway here's a pic and video of me getting them set up for the hot tub area with the first batch to test before ordering another. I am very happy with them.