At the price point, I wasn’t sure what to expect. But I was pleasantly surprised and will definitely order more next time they are offered!
Well I ordered these also and mine are not flush to the ground so I trip over them they do not lay flat. I even had them lay separately in an extra bedroom thought maybe they needed to "rest"but that is not the case these have to go back unfortunately
Oh no! Are they curled at the lip or just like weird? I ordered more but am waiting for them to arrive 
Please reach out to Woot! Customer Service. To speed things up, let them know if you prefer a return/refund or a replacement (if possible).
Please allow 24-48h for them to respond.
Browser: Use the Woot! Customer Service form.
Woot! App: Choose Account from the bottom navigation and then Support.
Self-Return: Items without Li-Ion batteries can be self-returned within 30 days. Go to your Order Details to get started. The return label will be emailed from UPS.
Note: Woot! Customer Service replies go to the email address on your Woot! account, not your Amazon login email if used/different.
Finger tip can fit under no problem. I have some returns to do
I received my next set and they are fine; I wonder if the set you got was stored at the warehouse sort of bent so that it curled up at the edges.
We had a chair at the sink for half a day and 1 of the feet was on the mat and left a quarter size sunken imprint. I thought it might be forever, but then it went away after some hours!