i only had issues w/ 1.0, and that was crappy battery life. mind you i just came from apex, than gummy jar, than liberty. tried a couple themes in liberty, and i think that was the reason for the crappy battery life. now, when 1.5 dropped, i flashed madestock (spelling) to get back to stock, rerooted, flashed 1.5, and reinst'ed apps w/ titum. since than, i bought droidx overclock (its sooo worth the money) set phone to Ultra low Voltage, and 1150 mhz, my phone is running flawless. never had a ramdom reboot, and i get about 14hrs from a full charge (10 or so emails, 15-20 text, 30 mins of calls, 30 mins of FB, and 30mins of internet)
ive tried rubix and apex, while they were nice, i keep coming back to liberty. it has sooo much you can play with is what keeps me coming back. only grip, and its small, i wish speed dial worked, i know its a blur thing, but i just like hitting the phone button, than number. jm2c.