Trouble with Rem Dreamer ?

Has anybody who owns a Rem Dreamer had trouble with their device, and how long have they owned it ?. I got mine a couple of days ago.

First two nights the unit froze during the delay countdown (which I had set to about 4 hours).:(
Last night I set it to only 40 min delay and it worked ok throughout the night.

The quality of the soldering on my device looks rather poor, so don't know whether to send it back for an exchange (a bit pointless if I am going to get another poorly soldered device back) or to have it re-soldered by some electronics shop.

I was also wondering about moisture from the head soaking through the padding and corroding the circuit board. Has anyone had long term reliability problems with their device ?.

Thanks