I've been using the Keo 2 Max for years now. They last for a few years and they work just fine. These were a deal of the Day and so I thought I'd give them a try. I can't tell a difference with the wider platform these have over the regular Max. I have the 12n spring tension and these are a bit harder to get out than the non blades, but they seem easier to get in they way they hang.
I think either pedal is fine, but if you really want to be locked in, these are the way to go.
I have been using Look pedal since the first time I clicked on to a pedal. I temporality tried SPDs and did not like them. Look pedals make it easy to clip on and off and also be able to twist you foot right or left. I know they make these pedals in carbon, I probably would choose carbon over composite for these pedals. I love them tho.
Love these clip in! Easy to get in and out of. My only complain is that they do squeek unless you coat the pedal surface with wax. My Look pedal owners know this. Otherwise, price value is excellent. I put on 8200 miles on these pedals this 2016 season and they are still going strong!
I've used old style delta Look pedals for years and was hesitant to make the switch to Keo. Wished I changed sooner! The blades are lightweight, solid, large stable platform with great power transfer. I have 12 NM retention- perfect for me. I'd recommend these to a friend for sure.