Love my Speedplays. I started with Light Action, which were easier to get in and out of. But after a few rides I realized I needed to be able to lock out the float, so I switched to Zeros. They were really hard to get into the first time I used them (which was on a group ride with my new team...that was pretty embarrassing) But it got easier after just a few clip/unclips.
I used to suffer from pretty bad hot foot, but since switching to a pedal with a larger platform didn't seem to help (Looks then Ultegras), I wasn't too worried about switching back to a smaller pedal.
FWIW, as far as hot foot...I had it bad. Usually after 50 miles I would have to take off my socks, and then stop every few miles to massage the feeling back into my toes. I've tried switching pedals, cleat position, even putting biofreeze on my feet. Finally I was talking to a friend who mentioned that Specialized insoles come with three different arch supports. Red (the lowest) is the default. I tried the blue (medium or average) then the green (high). Once I switched to the green, I never had a problem again!
"The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community." -- Ann Strong, Minneapolis Tribune, 1895