Try Blur for a while, if it don't suit you, then try another launcher. I like Launcher Pro, but I like Blur too.
You can always continue to switch back and forth with "Home Switcher". That's the beauty of Android
its also good to get "moto home fix" because with moto blur and adding additional launchers, theres some issue where you wont be able to revert to the stock home launcher, unless you delete the other launchers (thats a pain obviously. they list that in the description of home switcher, but i use clear home default myself :-)
Im a first time Motorola Android phone user myself. First time I ever used Blur and its really not that bad. But I already have paid versions of Launcher Pro and ADW Launcher EX and Im running with ADW. Love how I can customize just about everything. Plus, the different launcher makes the homescreen speed up just a little bit more. Other then that, its a blazing fast phone! I hardly get lag at all.