1) as the tiles are flexible and only a few mm thick your subfloor needs to be perfectly flat and smooth. and imperfections will stick out like a sore thumb and may affect adhesion, causing the edges of the tiles to peel back.
2) it's a messy business if you use the old tar-like adhesive they always used to use to lay vinyl. not sure if you still need to use that stuff though, F44 or F45 acrylic adhesive might do it. check mfr's recommendations.
3) they are a nightmare to remove when the time comes to change them.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!