For the price and what I have read on thetests and the opinions of others, yes I would invest in one. I almost bought the one I was looking at but I didnt have the cash.
Here are some links with reviews and opinions.
http://http://www.thehighroad.org/showthread.php?t=161840

http://www.graybeardoutdoors.com/phpbb2/viewtopic.php?t=79105&start=0

http://www.graybeardoutdoors.com/phpbb2/about68808.html