I was a religious user of Nokia phones pre Android era. But once the touchscreens started ruling, there was no looking towards keypad phones. I first bought a Samsung pocket phone(will review it soon) and then an year later I switched to Motorola. I was skeptical in the beginning but then I fell in love with it.
The User Interface is definitely different from the Samsung Interface and you might not like it initially but once you get a hang of it, you will love it to the core. So if you are thinking of letting go of overpriced Samsung phones, switch to Motorola!