I prefer delta style cleats so I ride spd sl anymore but to answer your "ease of getting into" question I always like to show this pic from 2008. Start of a race. I am in the front with the blue and white helmet (celeste kit *shiver*). That was right at the start. I am cvlipped in and looking down the road. Everyone else (mostly) is looking down to clip in. I was running speedplay at the time. Easiest to clip into at the start of a race IMHO