I have one, and I love it. Been using it for several months now and no problems other than battery life. What I have found is if you take it out the charger soon after it goes green you may get only about 6 hours or so of light use. But if you take it out for a second and put it back in it will charge at least another 30 mins and work all day no problem. I've talked to a few folks and they are seeing this too, EFJ is working on an answer from what I was told.
One thing I can tell you is I put mine in the hands of a customer and he range checked it against his APX 7000 portable. conventional VHF had MUCH better range and trunked 7/800 systems all talked better, this was a real life customer doing his own tests with the radios side by side. He told me some areas they have never been able to use a VHF portable from but the VP900 came thru good. Of course there was some crackle since this was analog conventional, but mild static is much better than no transmission at all.
Now I'm waiting on the VM900 mobile, hopefully they release it before year end but it keeps getting pushed back.