The way I evaluate how easy to use a product is by looking (or in this case not looking at the manual, this product is sufficiently easy to use, I do not need to open its manual to start to use it right away.
First, the good points:
1. I find the microphone came with the recorder is very senstive and can pick up volume quite nicely from a distance, this is good for me as I bought this for recording my conference minutes.
2. It appears to be well made, I drop it once (already!) from 6 ft, and it did not appear to damage it.
Now, the not so good point:
The play back volume and speaker is not very good, in a quite room you certainly can hear it, but if you are in an outdoor environment or driving, forget it, the playback is not very good. you can crank up the volume but distortion will set in, I was thinking first, this may be the recording volume issue, but after I upload to my PC with better play back device, I know this is not the case, it is the recorder itself.
Update 3-5-2012
After several month use, I can tell you another not so good point about the recorder, it will eat battery (2x AAA) quickly, with a new set of battery, no recording but just playback, it will last 3 weeks in daily use for 40 minute a day, I consider this is not very efficient.