Yes, I have the LG Optimus M+.
Is it worth trying? I don't know too much about the benefits, all I really would want are faster speeds(better than .7Mbps) and possibly the option to tether via USB or use my phone as a hotspot, I'm not sure if my phone can do this though. So far, I've had no luck. I'm running Windows XP SP3, and I think I read somewhere you can only USB tether with Vista or 7..is that true?
EDIT: Found an app called "PDANet", seems to do the trick for tethering, although I can only seem to get ~2Mbps download on my PC, whereas I get ~5.5Mbps on my phone via Wi-Fi.
Still would like to know how to boost the "3G" speeds.