I've had mine (iFP-390T) for about 3 months. I've done my own review (previously) and like this one, I love most things about it.
A few of the best things stick out in my mind :
- the built in Radio is top notch, even better than the dedicated Sony T-615 radio i used to have (compared them directly)
- player is unique in its ability to record line-in at up to 320kbs (the only flash player design, anyway)
- power output is enough to drive Etymotic ER4S
- voice recording is excellent, and many bitrate options
- onboard file management
- With alternate firmware, player works as mass storage device
A couple of things are not so good.
1) USB1.1 interface is just ridiculously slow. it drives me nuts loading this thing (256mb). I'll definately be upgrading to the new generation of USB2 capable flash players (like Nomad Muvo2 512mb)
2) the shape needs to be slimmer. while I do like the look (interesting design and unusual contours), the problem is that it is a little too thick for comfortable pocketing. it will fit obviously, but it looks like a well.. like a hard cylinder shape thing in your pocket. i kind of wonder how noticable that is when i have it my gym shorts. lol
3) I've gotten used to the Configuration menu, but its still a weird navigation system they are using. on each menu, to move up and down on the menu items, you move the little joystick right and left (instead of up and down as you might expect).