if i was u and felt apprehensive id get and try multi release cleats ,they release in more ways so avoiding that panic situation and u can unclip easily ,some people find them too easy to unclip but i use them all the time for commuting and have never had an issue,about the only downside (if u can call it that)is that they WILL clipout if you do the pulling up thing while pedalling (i bet most people dont anyway)
my pal has just got a new bike and i persuaded him to go clipless and it was the multi release cleats i got for him and he loves them ,,your feet are attached as normal until you try and pull out there must b a "limit "and beyond that they just let go (kinda half clipped in ,,,,KINDA),much safer imo and a lot easier for beginners
the cleat your after is sh56 (standard is sh51)and theyr the same price ,highly reccomended