Everybody falls when they first start using clipless.
SPD are good clipless pedals for anyone coming from platform pedals, as SPDs are very easy to get into and out of. I always recommend them for first timers.
I used SPD on my road bike for years, until I switched to Look Keo compatible pedals with power (
Assioma). I won't be going back to SPD, except maybe for touring, where one does a lot of walking around in bike shoes.
The power meter feature aside, the Look Keo pedal platform is broader and more secure than SPD. After some practice, I was able to unclip as easily as with SPD.