I have one. Its very easy to use. It takes 2 AA batterys and has an on/off switch.
For resistances above one ohm, it reads as you would expect. A 1.26ohm build says "1.26".
For builds between 0.100 and 0.999, there is no decimal point. A 0.475 ohm build will read "475". A 0.189 ohm build will read "189".
The decimal point comes back for builds below 0.100 ohm. So a 0.035 ohm build will read ".035".