This is an excellent thermometer. It reads very quickly (sometimes it takes even less than the advertised 30 seconds). I use it with the universal probe covers available on Well.ca; although it does come with several probe covers in the package.
Just one thing that's not too much of a concern is that the button to take readings is a little stiff. You have to press hard on it while the thermometer is in your mouth and that might cause the thermometer to move a little bit.
All in all, a very good product.