I bought these for my other half who is a bit of a vinyl collector, and he loves them. After 6 months they still look great and are very practical, and have coped perfectly with all manner of hot cups and crockery which have been placed on top of them. And they have been used several times a day. What is also nice is the detail, the label is just like a real record and even the black silicone has little grooves round it.
The only slight downside I would mention is that they do seem to collect dust easily, I think probably due to the silicone being a bit rubbery, and the black colour shows it up. A quick rinse in warm water and they are back to new.